You do use Squidoo right?
Have you heard of Scribd?
Or how about Wetpaint?
Here are the links..
What can you do with these sites?
Make a page about something you love, want to share, want to sell, want to advertise, want traffic for, and so on.
Lots of neat things can be done with sites like these. And most have a very high Google Page Rank (wetpaint has a 7 or 10!).
Great place to build backlinks and traffic to your site.
Worth checking out.