U.S. Education Department Finds Salary Gap in Poor Schools - NYTimes.com

http://www.nytimes.com/2011/12/01/education/us-education-department-finds-salary-gap-in-poor-schools.html

There's a lot of evidence that we need a system that rewards teachers for taking jobs in poorer, hard-to-serve areas. Unfortunately, that's not the system we have, where the wealthiest districts pay teachers the most.