1. Freehuddle
2. Gmail
3. Facebook
4. ESPN/CNNSI (depends on what I want to look up in the sports world)
5. Peegs (Indiana Rivals board)
6. Google
Those along with a few other tabs of websites are never closed on my browser. I usually have about 10-12 tabs open at all times and only close them when my RAM starts to get full and slows the computer down so I have to re-start to clear the RAM.
yahoo.com (e-mail)
freehuddle.com (only on workdays)
kotaku.com (video game news)
swiftor.com (video game community forums I hang around at)
slickdeals.net
freehuddle
facebook (though that has declined a lot recently)
jetnation
gmail
various sites through my google reader (slickdeals, lifehacker, development blogs, etc)