First the Internet, that ever nebulous "cloud", expanded and morphed to the point that it eventually flexed inside of Corporate firewalls to become the Intranet. Next came Wikis and Blogs with the whole "Web 2.0" craze... which continues to seep into companies today. Following the same absorption process, and nicely blending all previous technical crazes: social computing.
This lends the context that's been missing to make effective use of recent technologies. Perhaps not as profound as the (still elusive) unified theory for Physics, but no less important where software is concerned. Think: Facebook meets your ECM. How much more useful would something as mundane as a content management system become when similar features are applied?
We'll see soon... innovators in this space are bringing tangible products to market within the next few months. Laggards beware!!