GROU.PS is a free social network utility which uses Facebook Connect to leverage existing relationships to form groups and provide all the functionality they could want. Extremely intuitive and well integrated, GROU.PS allows you to customize just about anything and nails most of the usability and sociability issues raised in Jenny Preece’s book Online Communities. From polls to forums, blogs, videos, wikis and group chat this site is clearly an excellent option to build and support your community online. I especially like the ActivityRank feature which allows you to properly incentivize the most valuable activities for your group.
Take a look at the grou.ps/smartlds community. I have high hopes for sharing, learning and above all growing strong relationships there. Community seems so indispensable in an enterprise elearning support strategy!