[WORK] - How To Negotiate Your Salary

One of the best and most effective techniques I've seen (know it cold and practice, practice, practice), from Personal Finance guru Ramit Sethi. He's quite excellent for the most part and purports to test all his stuff - including all assumptions - carefully): http://www.iwillteachyoutoberich.com/blog/the-briefcase-technique-to-earn-thousands-of-dollars/

Quite useful section on salary (TheLadders): http://www.theladders.com/career-advice/salary

Your first source of info on salary, as well as company info - employee ratings, jobs posted, in-depth reviews: http://www.glassdoor.com

Also helpful: http://www.salary.com