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This deck is the result of research I did into popular LinkedIn Groups. It contains lists of the 150 largest LinkedIn Groups categorized into 19 different topic areas. Groups obviously into job ...

This deck is the result of research I did into popular LinkedIn Groups. It contains lists of the 150 largest LinkedIn Groups categorized into 19 different topic areas. Groups obviously into job searches or recruitment have been stripped out. Enjoy.

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    The 150 Largest LinkedIn groups The 150 Largest LinkedIn groups Presentation Transcript

    • Bill Chamberlin, Principal Client Research Analyst06 Sept 2011The 150 Largest LinkedIn GroupsCategorized into 19 different topic areas © 2011 IBM Corporation
    • IBM Market InsightsAbout this deck This deck contains a list of the top 150 largest groups on LinkedIn, based on membership size as of September 5, 2011. – Note: Any group clearly focused on Job Hunting / Recruitment has been stripped out. Each of the 150 groups has also been categorized by type of topic –A separate list of the 150 sorted by type of topic is also provided in this deck Also included are the screen shot profiles of the top 20 largest groups This research was conducted September 6-7, 20112 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsTable of contents 1. The 150 Largest LinkedIn Groups – The List of 150 – The List of 150 By Topic Category/Industry 2. The Top 20: Group Profiles3 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights The 150 Largest LinkedIn Groups*: #1 - 50 Category Title Members Category Title Members 1 Finance Finance Club 163744 26 Software Software Testing & Quality Assurance 62028 2 Technology TED: Ideas Worth Spreading 127484 27 Energy Oil and Gas People 62028 3 Sustainability Green 115636 Cloud, VMware, Virtualization and Enterprise 4 Finance FinancePlus 109050 28 Technology 2.0 61935 5 Real Estate The Real Estate Networking Group 108531 29 Energy Energy & Utilities Network 59950 6 Retail Retail Industry Professionals Group 99639 Professionals in the Pharma and Biotech 30 Healthcare Industry 59395 7 Healthcare Biotech & Pharma Professionals Network 98402 31 Finance Chief Financial Officer (CFO) Network 58140 8 Energy Linked:Energy (Energy industry expertise) 97557 32 Company CISCO 56790 9 Company SAP Community 97145 Oil & Gas Industry Professionals; Energy Supply10 Technology Cloud Computing 91387 33 Energy Chain 5581811 Technology Information Security Community 91313 34 Technology IT Specialist Group 5419612 Business Harvard Business Review 88827 Healthcare Information and Mgmnt Systems13 Business Future Trends 85257 35 Healthcare Society 5358714 Mobile Telecom Executives Business Network 81484 36 Company SAP Network GLOBAL 5333415 Country India Leadership Network 79881 37 Company Deloitte. 5299116 Country White House 74684 38 Social Social Media Today 5252917 HR HR & Talent Management Executive 71088 39 Company HP Connections 5234218 HR H.R. Professionals 68666 40 Country TURKISH BUSINESS NETWORK 5175119 Healthcare Medical Devices Group 66989 Learning, Education and Training Professionals20 Analytics Business Intelligence Professionals 66389 41 Other Group 4909821 Finance - Banking Banking Careers 65340 42 Supply Chain The Logistics & Supply Chain Networking Group 4781022 Software Open Source 64361 43 Supply Chain Auto OEM Network 4693523 Lodging Hotel Industry Professionals Worldwide 63520 44 Software Java EE Professionals 46235 Society for Human Resource Management 45 Other Media & Entertainment Professionals 4614124 HR (SHRM) 62927 46 Other Linking CONSTRUCTION 4597825 Software The Enterprise Architecture Network 62159 47 Finance - Risk Risk, Regulation & Reporting 44978 48 Healthcare Innovations In Health 44276 49 Business CIO Forum 42792 Travel & Tourism Industry Professionals 50 Travel Worldwide 42308 * Does not include groups focused primarily on job hunting or recruitment 4 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights The 150 Largest LinkedIn Groups*: #51 - 100 Category Title Members Category Title Members51 Technology ITSM (ITIL) Professionals 41755 76 Supply Chain Automotive Management Professionals 3391752 Other Automotive Industry Professionals Worldwide 39501 77 HR Human Resources Professionals Worldwide 3371253 Company Oracle ERP User Network 39300 78 Software Software as a Service (SaaS) Group 3337154 Finance Finance Industry Professionals Worldwide 39103 Clean Economy Network - Cleantech and ASTD (Amer Society for Training & 79 Sustainability Renewables 3336555 Other Development) 3895756 Company Google Group 38283 80 Mobile Mobile Marketing & Advertising 3270757 Retail Retail Industry Professionals Worldwide 38057 81 Mobile Wireless Telecommunications Worldwide 3230958 Healthcare Medical Device Networkers 37759 82 Finance - Insurance Insurance Professionals 3222759 Analytics Business Intelligence Group 37348 83 Supply Chain Strategic Sourcing & Procurement 3211660 Software IASA: The Global IT Architect Association 37248 84 Finance - Banking Banking Connects 3188561 Mobile Telecom & Mobile VAS Professionals Worldwide 36731 85 Other e-LEGAL 3164062 Retail Retail Management 35894 86 Mobile LinkedIn Mobile 3156963 Mobile Google Android 35771 87 Company Facebook User Group 3156064 Company Microsoft Business Intelligence 3559665 Country India HR Forum 35581 88 Real Estate National Assn of REALTORS® 3155066 Other CPG Supergroup! 35344 89 Other Print Industry Networking Group 3143667 Lodging Luxury Hoteliers 35133 90 Retail Food, Beverage & Hospitality –Execs 3079668 Business Chief Information Officer (CIO) Network 35104 91 Company Accenture 3076169 Real Estate Corporate Real Estate 35092 92 HR SHRM Networking Group 3072070 Company ORACLE CONNECTIONS 35038 93 Business Business Process Improvement 3045071 Country Dubai Business Network 34928 94 Finance The American Institute of CPAs 3044272 Finance Financial Services Regulation 34842 95 Sustainability Solar Energy Professionals - PV & Thermal 3039673 Travel Aviation Professionals (30,000+ Members) 3449674 Finance CFA Institute Candidates 34397 96 Retail RETAIL EXECS 3029575 Supply Chain Supply Chain Management Group 34374 97 Business ASQ - The American Society for Quality 30241 98 Business CompliancEX 30150 99 Healthcare Lifesciences Opportunities in US 29943 100 Business Marketing Executives Group 29756* Does not include groups focused primarily on job hunting or recruitment 5 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights The 150 Largest LinkedIn Groups* #101 - 150 Category Title Members Category Title Members101 Engineering American Society of Civil Engineers (ASCE) 29685 126 Software The IT Architect Network 26218102 Sustainability Sustainability Professionals 29677 127 Country China Business 26121103 Finance Treasury / Finance Careers 29598 APICS The Association for Operations104 Sustainability Wind Energy Professionals 29471 128 Other Management 26118105 Engineering Interaction Design Association 29306 129 Finance – Ins. Global Insurance Professionals 26000106 Healthcare Medical Device Opportunity 29254 130 Other DEFENSE AND AEROSPACE CONNECTIONS 26000107 Business Harvard Business Review - Readers Forum 29240 ModernAnalyst.com - Business Analyst 131 Analytics Community 25888108 Business CRM Experts 29201 132 Country Young Indian Entrereneurs 25735109 Business Quality & Regulatory Network 29014 TDWIs BI and Data Warehousing Discussion110 Mobile iPhone, Android, iPad, Tablet & Mobile App Dev. 28834 133 Analytics Group 25692111 Finance Payment Systems Network 28772 134 Company Salesforce.com Professional Network 25638112 Company SharePoint Users Group 28686 135 Social Web 2.0 25591113 Finance The Institute of Internal Auditors 28089 136 Technology Information Security Network 25450 LiMS forum - Laboratory, Scientific & Health 137 Social Future Social Media 25336114 Healthcare Informatics 27798 138 Sustainability Renewable Energy Network 25196115 Finance – Banking Banking and Finance Technologies 27729 139 Supply Chain Freight & Logistics Professionals 24858 Real Estate Open Networkers - 140 Technology B2B Technology Marketing Community 24722116 Real Estate eRealEstateSocial.com 27526 141 Healthcare Pharma Connections Worldwide 24481117 Finance – Risk Financial Risk Management Network 27321 142 Technology Cloud Security Alliance 24433 Adv. Bus. Analytics, Data Mining, Predictive 143 Country Australian IT Industry 24196118 Analytics Modeling 27059 144 Sustainability LEED Accredited Professional 24054119 Sustainability GreenBiz.com -- Green Business Professionals 26851 145 Sustainability CleanTech 23858 146 Business The Executive Club 23504120 Healthcare Medical Device Development, Marketing And Sales 26727 147 HR Human Capital Institute 23386121 Technology Storage Professionals 26711 148 Technology Unified Communications 23380122 Engineering ASME (American Society of Mechanical Engineers) 26493 Supply Chain Management Practitioners &123 Energy Global Energy Professionals 26463 149 Supply Chain Experts 23190124 Finance - Risk Risk Managers 26315 150 Mobile Mobile Content 23072125 Technology Information Technology Audit and Governance 26244 * Does not include groups focused primarily on job hunting or recruitment 6 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsThe List of 150 By Topic Category Group Topic Categories 1. Analytics … 5 groups 2. Business Topics … 12 groups 3. Company Specific … 13 groups Top 5 Categories 4. Country Specific … 8 groups 5. Energy … 5 groups 1. Finance (18) 6. Sustainability … 9 groups 2. Company Specific (13) 7. Engineering … 3 groups 8. Financial Topics … 18 groups 3. Technology Topics (12) 9. Healthcare … 11 groups 4. Business Topics (12) 10. Human Resources … 6 groups 5. Healthcare (11) 11. Travel & Transportation … 4 groups 12. Telecom and Mobile … 8 groups 13. Real Estate Industry … 4 groups 14. Retail … 5 groups 15. Social Media … 3 groups 16. Software Topics … 7 groups 17. Logistics & Supply Chain … 7 groups 18. Technology … 12 groups 19. Other Industry Topics … 10 groups7 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Analytics Topics Title Members Business Intelligence Professionals 66389 Business Intelligence Group 37348 Adv. Bus. Analytics, Data Mining and Predictive Modeling 27059 ModernAnalyst.com - Business Analyst Community 25888 TDWIs BI and Data Warehousing Discussion Group 25692* Does not include groups focused primarily on job hunting or recruitment8 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Business Topics Title Members Harvard Business Review 88827 Future Trends 85257 CIO Forum 42792 Chief Information Officer (CIO) Network 35104 Business Process Improvement 30450 ASQ - The American Society for Quality 30241 CompliancEX 30150 Marketing Executives Group 29756 Harvard Business Review - Readers Forum 29240 CRM Experts 29201 Quality & Regulatory Network 29014 The Executive Club 23504* Does not include groups focused primarily on job hunting or recruitment9 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Company Specific Title Members SAP Community 97145 CISCO 56790 SAP Network GLOBAL 53334 Deloitte 52991 HP Connections 52342 Oracle ERP User Network 39300 Google Group 38283 Microsoft Business Intelligence 35596 ORACLE CONNECTIONS 35038 Facebook User Group 31560 Accenture 30761 SharePoint Users Group 28686 Salesforce.com Professional Network 25638* Does not include groups focused primarily on job hunting or recruitment10 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Country Specific Title Members India Leadership Network 79881 White House 74684 TURKISH BUSINESS NETWORK 51751 India HR Forum 35581 Dubai Business Network 34928 China Business 26121 YOUNG INDIAN ENTREPRENEURS 25735 Australian IT Industry 24196* Does not include groups focused primarily on job hunting or recruitment11 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Energy Topics Title Members Linked:Energy (Energy industry expertise) 97557 Oil and Gas People 62028 Energy & Utilities Network 59950 Oil & Gas Industry Professionals; Energy Supply Chain 55818 Global Energy Professionals 26463* Does not include groups focused primarily on job hunting or recruitment12 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Sustainability Topics Title Members Green 115636 Clean Economy Network - Cleantech and Renewables 33365 Solar Energy Professionals - PV & Thermal 30396 Sustainability Professionals 29677 Wind Energy Professionals 29471 GreenBiz.com -- Green Business Professionals 26851 Renewable Energy Network 25196 LEED Accredited Professional 24054 CleanTech 23858* Does not include groups focused primarily on job hunting or recruitment13 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Engineering Topics Title Members American Society of Civil Engineers (ASCE) 29685 Interaction Design Association 29306 ASME (American Society of Mechanical Engineers) 26493* Does not include groups focused primarily on job hunting or recruitment14 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Financial Topics Title Members Finance Club 163744 FinancePlus 109050 Chief Financial Officer (CFO) Network 58140 Finance Industry Professionals Worldwide 39103 Financial Services Regulation 34842 CFA Institute Candidates 34397 The American Institute of CPAs 30442 Treasury / Finance Careers 29598 Payment Systems Network 28772 The Institute of Internal Auditors (Official Global Group) 28089 Banking Careers 65340 Banking Connects 31885 Banking and Finance Technologies 27729 Insurance Professionals 32227 Global Insurance Professionals 26000 Risk, Regulation & Reporting 44978 Financial Risk Management Network 27321 Risk Managers 26315* Does not include groups focused primarily on job hunting or recruitment15 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Healthcare Topics Title Members Biotech & Pharma Professionals Network 98402 Medical Devices Group 66989 Professionals in the Pharma and Biotech Industry 59395 Healthcare Information and Mgmnt Systems Society 53587 Innovations In Health 44276 Medical Device Networkers 37759 Lifesciences Opportunities in US 29943 Medical Device Opportunity 29254 LiMS forum - Laboratory, Scientific & Health Informatics 27798 Medical Device Development, Marketing And Sales 26727 Pharma Connections Worldwide 24481* Does not include groups focused primarily on job hunting or recruitment16 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Human Resources Topics Title Members HR & Talent Management Executive 71088 H.R. Professionals 68666 Society for Human Resource Management (SHRM) 62927 Human Resources Professionals Worldwide 33712 SHRM Networking Group 30720 Human Capital Institute 23386* Does not include groups focused primarily on job hunting or recruitment17 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Travel & Hospitality Industry Title Members Hotel Industry Professionals Worldwide 63520 Travel & Tourism Industry Professionals Worldwide 42308 Luxury Hoteliers 35133 Aviation Professionals (30,000+ Members) 34496* Does not include groups focused primarily on job hunting or recruitment18 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Telecom and Mobile Topics Title Members Telecom Executives Business Network 81484 Telecom & Mobile VAS Professionals Worldwide 36731 Google Android 35771 Mobile Marketing & Advertising 32707 Wireless Telecommunications Worldwide 32309 LinkedIn Mobile 31569 iPhone, Android, iPad, Tablet & Mobile App Development 28834 Mobile Content 23072* Does not include groups focused primarily on job hunting or recruitment19 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Real Estate Industry Title Members The Real Estate Networking Group 108531 Corporate Real Estate 35092 National Assn of REALTORS® 31550 Real Estate Open Networkers - eRealEstateSocial.com 27526* Does not include groups focused primarily on job hunting or recruitment20 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Retail Industry Title Members Retail Industry Professionals Group 99639 Retail Industry Professionals Worldwide 38057 Retail Management 35894 Food, Beverage & Hospitality - Foodservice & Retail Execs 30796 RETAIL EXECS 30295* Does not include groups focused primarily on job hunting or recruitment21 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Social Media Title Members Social Media Today 52529 Web 2.0 25591 Future Social Media 25336* Does not include groups focused primarily on job hunting or recruitment22 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Software Topics Title Members Open Source 64361 The Enterprise Architecture Network 62159 Software Testing & Quality Assurance 62028 Java EE Professionals 46235 IASA: The Global IT Architect Association 37248 Software as a Service (SaaS) Group 33371 The IT Architect Network 26218* Does not include groups focused primarily on job hunting or recruitment23 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Logistics & Supply Chain Topics Title Members The Logistics & Supply Chain Networking Group 47810 Auto OEM Network 46935 Supply Chain Management Group 34374 Automotive Management Professionals 33917 Strategic Sourcing & Procurement 32116 Freight & Logistics Professionals 24858 Supply Chain Management Practitioners & Experts 23190* Does not include groups focused primarily on job hunting or recruitment24 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Technology Topics Title Members TED: Ideas Worth Spreading 127484 Cloud Computing 91387 Information Security Community 91313 Cloud, VMware, Virtualization and Enterprise 2.0 61935 IT Specialist Group 54196 ITSM (ITIL) Professionals 41755 Storage Professionals 26711 Information Technology Audit and Governance Group 26244 Information Security Network 25450 B2B Technology Marketing Community 24722 Cloud Security Alliance 24433 Unified Communications 23380* Does not include groups focused primarily on job hunting or recruitment25 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsLargest LinkedIn Groups* - Other Industry Topics Title Members Learning, Education and Training Professionals Group 49098 Media & Entertainment Professionals 46141 Linking CONSTRUCTION 45978 Automotive Industry Professionals Worldwide 39501 ASTD (Amer Society for Training & Development) 38957 CPG Supergroup! 35344 e-LEGAL 31640 Print Industry Networking Group 31436 APICS The Association for Operations Management 26118 DEFENSE AND AEROSPACE CONNECTIONS 26000* Does not include groups focused primarily on job hunting or recruitment26 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsTable of contents 1. The 150 Largest LinkedIn Groups – The List of 150 – The List of 150 By Topic Category/Industry 2. The Top 20: Group Profiles27 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market InsightsThe Top 20 Largest LinkedIn Groups* Category Title Members 1 Finance Finance Club 163744 2 Technology TED: Ideas Worth Spreading 127484 3 Energy - Sustainability Green 115636 4 Finance FinancePlus 109050 5 Real Estate The Real Estate Networking Group 108531 6 Retail Retail Industry Professionals Group 99639 7 Healthcare Biotech & Pharma Professionals Network 98402 8 Energy Linked:Energy (Energy industry expertise) 97557 9 Company SAP Community 97145 10 Technology Cloud Computing 91387 11 Technology Information Security Community 91313 12 Business Harvard Business Review 88827 13 Business Future Trends 85257 14 Mobile Telecom Executives Business Network 81484 15 Country India Leadership Network 79881 16 Country White House 74684 17 HR HR & Talent Management Executive 71088 18 HR H.R. Professionals 68666 19 Healthcare Medical Devices Group 66989 20 Analytics Business Intelligence Professionals 66389* Does not include groups focused primarily on job hunting or recruitment28 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights1. Finance Club = 164,667 Members29 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights2. TED: Ideas Worth Spreading = 129,118 Members30 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights3. Green = 115912 Members31 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights4. Finance Plus = 109,721 Members32 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights5. The Real Estate Networking Group = 109,193 Members33 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights6. The Retail Industry Professionals Group = 99,938 Members34 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights7. Biotech & Pharma Professionals Network = 98363 Members35 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights8. Linked: Energy (Energy industry expertise) = 98052 Members36 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights9. SAP Community = 97,619 Members37 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights10. Cloud Computing = 92,006 Members38 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights11. Information Security Community = 91,666 Members39 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights12. Harvard Business Review = 90,431 Members40 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights13. Future Trends = 85,883 Members41 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights14. Telecom Executives Business Network = 81,779 Members42 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights15. India Leadership Network = 80,330 Members43 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights16. White House = 74,716 Members44 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights17. HR & Talent Management Executive = 71,601 Members45 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights18. H.R. Professionals = 68,617 Members46 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights19. Medical Devices Group = 67,635 Members47 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation
    • IBM Market Insights20. Business Intelligence Group = 66,683 Members48 06 Sept 2011 The 150 Largest LinkedIn Groups © 2011 IBM Corporation