For awhile we've been pushing the idea of Facebook evolving to support business social networking alongside the "social" social networking. But in order for that to work, the site needs to find a way to shed its image as a beacon of college hooliganism -- Facebook is a place to post party pictures, not product pitches. But even so, the appeal of leveraging Facebook's social graph for business is too good to pass up. As we've noted in the past, there are already huge business networks on Facebook -- 30,000 Microsoft employees, 8,500 Googlers, etc. Those relationships are ripe for exploiting for business networking, but there is a prevailing feeling that that's not what Facebook is for.

Even though the stigma that Facebook is not suitable for anything serious exists, there are indications that people want that to change. Last July we published list of our picks for the top 10 Facebook apps for work and despite the post fairing poorly on social news sites like Digg, it did very well and generated a good deal of discussion. Other "serious" apps, like Causes