Was interesting, but felt a little old hat.
This probably due to the fact that the whole process of registering for Facebook felt a lot like signing up for an email account. There's the same customed information, access to groups, etc. The whole thing is more "me" oriented than "site" oriented (The way an email account would be) , but the similarity is unmistakable.
The article that was posted mentioned the use of Facebook to disseminate new software and apps, which struck me as cool. Hopefully, the more I explore Facebook, the more stuff will pop up.