Luis Suarez, who works for IBM from the Canary Islands, got tired of wading through piles of e-mail, so he moved most of his communications to social networking tools, especially blogs. To keep up with his co-workers, he used an RSS reader (I use Google Reader for the same thing) to stay on top of their blogs.
Lawyers can make use of social networking tools, as well. A litigation team could make extremely effective use of a blog to track ideas, due dates, documents, and more. It would need to be a non-public blog, obviously, but this would be easy to accomplish.
One of the problems with e-mail is it is sent, received, and then lost. If team members communicated on a blog, that information would be constantly available and frequently reviewed.
I Freed Myself From E-Mail’s Grip | New York Times