Wanted to try something out; adding a way for people to include social network-type information to their profiles. For now, it only displays inside your profile; you can check out mine to see what an example.
If people start abusing the feature, it will go away. This includes linking to personal blogs, spam links, etc. If you notice someone who does it, let me know.
It's not ideal, but at least something to add breadth to contacting and communicating methods!