R. Anne Hull
There are several sites to begin your search, but don't stop with just the generic info you get from them. You have to validate the ranges by talking with people doing similar work and/or in the organizations where you want to work. But don't ask them, "what do you make?" Present the range you've identified and ask them if it sounds right for their organization. You can gauge whether you are high or low based on their response.
Read as many job descriptions as you can find that list the quals you have and the salary ranges.
The Dept. of Labor is a starting place, but may not be as recent as you need search on your profession and state or where you intend to work:
http://www.onetcenter.org/ is a goldmine of job seeker info, including salaries
'Hope this gets you started.