BuddyPress is a set of WordPress MU specific plugins, each plugin adding a distinct new feature. BuddyPress contains all the features you’d expect from WordPress but aims to let members socially interact

With GroupSwim, your employees, customers, and partners connect easily to share ideas and make decisions quickly. Enjoy unparalleled productivity, gain new levels of insight, and improve the way you work.

No matter which department you're in, Web 2.0 technologies have had an impact. If you've been ignoring their prevalence and adoption, you're at risk of falling behind in your career and your business is at risk of losing ground to its competitors who are tuned into this trend.