Many argue that Social Networks are a dangerous model for sharing confidential or proprietary information and that their employees are distracted enough at work without something like Facebook competing for their time. Others such as IBM claim that its Blue Pages social intranet is an invaluable tool to help people stationed all over the world connect. Pharmaceutical company Pfizer successfully uses a Wikipedia-like service called Pfizerpedia. Ultimately, all companies need to set rules that determine acceptable use for social networking.
eWeek: Examples of Enterprises using Social Software
I was listening to the Empowering People Podcast with Dwight Morse when I came across this nice video on Enterprise Uses of Social Networks.