Some helpful sites

These are some of the best TF2 related sites out there, and I find myself using them A LOT!

http://wiki.teamfortress.com/wiki/Main_Page - The official Team Fortress 2 Wiki, please don't use TF2wiki as it is outdated and often not right.

http://tf2spreadsheet.blogspot.com/ - TF2 spreadsheet. This site will show you all the prices of items, very helpful if you're into trading!

http://www.tf2outpost.com/ - A TF2 trading site
http://tf2tp.com/ - Another TF2 trading site
http://www.tf2wh.com/ - A third TF2 trading site, this one does work different from the others, as you sell AND buy items for credits instead of trading.

Have fun with these sites!