USA Today just posted a piece on how we are perceived against Sharepoint. It's not a long read, but they do a great job of framing the Clearspace approach and the Sharepoint approach. Here's a clip:

 

Jive Software wants to be the Apple Computer of corporate social networks. Jive's competing Clearspace system supplies all the bell and whistles in a slick, tightly integrated package. Jive only does Clearspace. I caught Chief Strategy Officer Sam Lawrence in a black Jive t-shirt gathering intelligence at Microsoft's conference. He showed me how companies like Sony, Nike and John Deere are using Clearspace to enable employees to collaborate on what functions  like a highly refined Facebook-like internal web site. "We're a pleasure to use, exactly like the iPhone," Lawrence told me. "SharePoint is clunky; it’s more like FrankenSuite."