I haven't blogged about how ridiculously extensible Jive Clearspace is. Or, how active the global Clearspace development community is. No need. Just check out the Clearspace Plugin Catalog, along with the discussions and ratings for each plugin to get an idea. Tell your geek friends about it.
You say you want Facebook for the enterprise. How about Facebook in your enterprise profile?
The Facebook plugin integrates users' Facebook profiles into Clearspace while allowing each user to control how (or if) their Facebook information is shown.
You say you want to comment on Clearspace discussion threads, documents and blog posts via email. You've already been able to do that via the Email Watch feature. But now you want to create discussions, documents and blog posts through email, too. Ok. Now, you can.
The Advanced Email plugin gives your users the ability to comment on blog posts, documents and discussion threads and to create discussion threads, documents and blog posts, all via email.
You say you want to manage rich media, too? No problem. You can easily embed rich media from consumer sites with these plugins:
Oh, you want to create videos on the fly within Clearspace documents? That'll be here sometime in July - September:
New Plug-In Enables Jive's Product Line With High-Quality Video
You want to populate your Clearspace blog with content from some other blog? No problem.
You want to display your personal calendar on your homepage, or a group calendar on a community or group homepage? Here you go:
You say you want a social software platform. Jive Clearspace might be what you're looking for.