"Does college matter?", from Kathy Sierra. This is one of Kathy's older post, July 14, 2005.
"McAfee said he first realized the potential of Web 2.0 technologies to become an Enterprise 2.0 platform while studying more traditional corporate software applications including ERP, BPM, supply
This idea has been around for some time.
With business social networking software - managers and employees now have a system for connecting informal interactions and discovering new information flows.