Rogue Information Websites

http://elitistjerks.com/f47/t24301-rogue_pve_dps/

and for wotlk:
http://elitistjerks.com/f31/t26242-rogue_pve_dps_wotlk_discussion/

Note: these articles have very good and relevant information in them regarding every attribute of the class. But as such, it still helps to play your character how you enjoy playing it, just use these as guidelines to maximize your potential.

Here are some spreadsheets to help with dps calculations as well:
http://elitistjerks.com/f31/t27244-rogue_roguecraft_spreadsheet/
http://elitistjerks.com/f31/t11882-rogue_gear_spreadsheet/
http://elitistjerks.com/f31/t19926-rogue_dps_spreadsheet/

Yes, it's all elitestjerks.com, if you have any other links, I encourage you to post them here. Also, I'll do some more link hunting later (at work atm).