I really like FriendFeed. FriendFeed is like a comprehensive record of all my online footprints.

Now I find SecondBrain. SecondBrain is also very cool. It aggregates, it allows you to organize and categorize. It has a better interface than FriendFeed, which is to say it HAS an interface.

Unfortunately it doesn't support all the services that FriendFeed supports.

I'm hoping SecondBrain will be adding more services, and if it hopes to survive in this highly competitive category, it had better do so quickly.

And can these social sites PLEASE support LinkedIn?

So here's my SecondBrain account -- check it out:
http://waynehastings.secondbrain.com/