IBM has been using social software internally for many years to increase productivity and collaboration. Some key benefits include: 1) Enterprise social networks like BluePages with over 475,000 profiles serve over 3.5 million searches per week, saving an estimated $194 million per year. 2) Internal blogs, with over 10,000 total blogs and 60,000 comments, generate more publicity than IBM's communications department. 3) Bookmarking and tagging tools like Dogear have increased search satisfaction, with 50% of searches ending in a user-tagged result, saving an additional $4.5 million per year.