Stribe Community Network allows you to easily plug a Stribe.com community in your WordPress blog.
Stribe allow websites sharing the same interests to provide social networking tools to a common community of visitors, thus bringing more value and traffic to the "stribed" blogs. Stribe can appear in your blog like a widget in your sidebar, or like a social toolbar. More information at http://www.stribe.com/blog
Stribe provides public and private chat in a real-time newsfeed, private messaging and push to Facebook and Twitter in addition to cross-blogs interactions, invitations and link sharing. Stribe is cool!