[from
Cruft]
In other social software, the software does what the user tells it to do and usually creates a profile about what a person says about themself. Xfire takes this to the next level. It creates a profile about a user actually does, and allows others to see it.
Imagine if you will, running a piece of software that watched what you did online. It could tell where you spent your time online and what you were connected to currently. If you were in an IRC channel, it could point your friends to the IRC channel. If you were posting a lot on a specific message board or wiki, it could tell your friends that's what you'd been up to recently.
It's reasonable to concieve of software could track where you had commented on blogs and keep a record for you or let others see you comments on other blogs. Matt Haughey's Posted Elsewhere could be automated rather than hand crafted.
Yes, there's privacy and control issues. Sure, I don't want people knowing how much time I spend at porn sites either. But those are all solvable problems. The Orku-tribe-sters have been examing those issues ad naseum.
The possibilities go on and on if you start thinking about having an intelligent agent that keeps track of your net wanderings. Xfire is the first of a new breed of social software. A breed where the burden of work is removed from human and placed in the hands of the software, allowing the human to focus on the fun and interesting things.