Introduction to Social Networking
A social networking service is an
online service, platform, or site that
focuses on facilitating the building of
social networks or social relations
among people. A social network
service consists of a representation of
each user, his/her social links, and a
variety of additional services.
Introduction to Social
Social networking site is the phrase used to
describe any Web site that enables users to
create public profiles within that Web site and
form relationships with other users of the same
Web site who access their profile. Social
networking sites can be used to describe
community-based Web sites, online
discussions forums, chat rooms and other
social spaces online.
Categories Of Social Networking
• Educational Networks :
• Online Communities:
• Business Networks:
• Online Books:
• Online Videos:
• Online Music Download :
• Online Shopping:
Origin of social sites
Social network sites (SNSs) such as such as Fraudster, Cy
World, and MySpace allow individuals to present
themselves, articulate their social networks, and establish
or maintain connections with others.
These sites can be oriented towards work-related contexts
(e.g., LinkedIn.com), romantic relationship initiation (the
original goal of Friendster.com), connecting those with
shared interests such as music or politics (e.g.,
MySpace.com), or the college student population (the
original incarnation of Facebook.com).
Social Network Analysis
We measure Social Network in terms of:
1. Degree Centrality: The number of direct connections
a node has. What really matters is where those
connections lead to and how they connect the
2. Betweenness Centrality: A node with high
betweenness has great influence over what flows in
the network indicating important links and single
point of failure.
3. Closeness CentralityThe degree an individual is
near all other individuals in a network (directly
or indirectly). It reflects the ability to access
information through the network .
Types of social networkers
• Alpha Socializes – (a minority) people who
used sites in intense short bursts to flirt ,
meet new people, and be entertained.
• Attention Seekers – (some) people who
craved attention and comments from others
,often by posting photos and customizing
• Followers – (many) people who joined sites
to keep up with what their peers were doing.
Types of social networkers
Faithful – (many) people who typically used
social networking sites to rekindle old
friendships, often from school or university.
• Functional – (a minority) people who tended
to be single-minded in using sites for a
Source: Of com Social Networking Sites
research, September-October 2007
Some of the popular websites for social
Name Purpose Est.. Date Users
Badoo General, Meet new
people & dating,
Bebo General July 2005 117,000,000
Facebook General February 2004 908,000,000+
Flickr Photo sharing, February 2004
Google+ General 28 June 2011 400,000,000
Hi5 General 2003 80,000,000
Ibibio Talent based social
Myspace General August 2003 30,000,000+
TeachStreet Education / Learning /
Twitter General 15 July 2006 500,000,000
Communications can also fill in the social graph
Facilitates open communication, leading
to enhanced information discovery and
Allows employees to discuss ideas, post
news, ask questions and share links.
Provides an opportunity to widen business
Targets a wide audience, making it a
useful and effective recruitment tool.
Expands market research, implements
marketing campaigns, delivers
communications and directs interested
people to specific web sites.
Improves business reputation and client
base with minimal use of advertising
All social networking sites are time-
Some teachers find SNs too daunting to
SNs can become addictive. They can take
over your life, leaving little time for
family and friends. Knowing when to stop
is crucial – try to switch off!
Replication of themes from one SN to
another is annoying.
Students become obsessed in finding their
teachers on FB and intrude in teachers’
Privacy issues with FB AND Twitter – do
not accept people you don’t know or
protected accounts on Twitter.
Tweet deck often has technical problems
Social networking sites provide privacy options but
users are generally unaware or tend to ignore such
Stalkers, terrorists, ill-doers, con-artists could benefit
from such issues
Recent scandals-England :MI-6’s director’s wife puts
up photos of family on facebook.
Facebook’s controversial decision to make visible
relationship actions to entire social group
Future use of social network
Our friends will be there where ever we need them.
Universal identity and sign-in will be there
Social media content appears in other channels
The Perfect (Data) Storm feeds rich profiles
Social graphs and interests
Culture of sharing
Content creation, tagging, and life streaming
Location, browsing and search history, purchases, interests
Email, IM, SMS, Twitter
Tracks who you email the most (Gmail had already started)
Identifies who is closest to you – your “network neighbor”
Facebook does not have parental controls but My Space does have
MySpace requires members to be at least 14 years of age to join their
Facebook requires members to be at least 13 years of age to join their
MySpace uses IP addresses to manage their website, track member
usage and market the user information to their third party advertisers.
Facebook’s advertisers download marketing trackers or “web beacons”
to your computer to identify where their ads are most effective.
Personal information collected by MySpace is openly shared among
users so that they may communicate with each other. MySpace clearly
expresses in their policy that you are sharing your information at risk.
All private information given to Facebook is not sold or shared with
third party advertisers or marketers.
Steps to Safety
Keep personal information private
Use a nickname that doesn’t identify
location, gender, age
Only add friends you know in real life
Alter pictures to remove identities
Share profile and photos only with friends
Ignore harassing or rude comments
Never post sexually provocative photos
Never meet with someone you only
Don’t post information, photos, videos
you may later regret
Use privacy settings to limit access
Online choices have offline
Once posted it is
online, somewhere, forever
What make social network viable
1. Common Purpose Participants: Need to Network
and Collaborate with Others in their Field
2. Critical Mass of Users: Networks are more
Viable when there are a Lot of Participants
3. Networks Need Leaders
4. Networks Need Data: Networks Should
Leverage User-Generated Data that Fuels the
Context of the Conversation
5. No Participant Spamming
6. Networks Need Simplicity