If you don't you should.  It's a great social networking site.  A little overwhelming at first, but there is so much great stuff there.  You could spend days checking it out, and still find more great stuff.  It's like Myspace, but with more ways to interact, and you can earn points toward gift cards, or cash just for posting content, comments, photos, or interacting with others. 

There are tons of great groups with more information to explore. 

Keep informed on Gather.com! Content ranges from politics to cooking, and you earn Gather Points or cash for using the site! It's an excellent place for networking, and you can share some of your blogs, or websites in your profile, or write an article, post a photo, and link it back to your site. View my content here  I'm Barkely.