Yet at the same time these vendors compete with Sharepoint, and that competition will only increase when the more social-friendly SharePoint 2010 ships.

One enterprise that has seen success integrating social tools into SharePoint is consulting giant (and former ) Accenture.

More and more lately, the IT department at Accenture has noticed a thawing in senior management's resistance to social networking tools.

"The best line from a senior executive I've heard is, 'I get that I don't get it, but we need to do it,'" says Kevin Dana, Accenture's director of enterprise social computing and collaboration.