Brandon Hall has now created a sort of Friendster/LinkedIN specifically for the e-learning crowd. I was a little skeptical at first but after my friend Brent Schlenker plunged in, I thought 'what the heck!' To tell the truth, I have been pleasantly surprised.
You can look at my public profile page here and get an idea of the kind of tool set available once you join the network. The functionality set looks good. The UI is pretty good - I find the initial color set to be a bit jarring but they do make the CSS available to you which will allow folks to really customize their profile page.
So congrats on a nicely designed, functional network!