Since I work for Texas Agrilife Research I thought I would pass this information along. This is a list of the US Cooperative Extension Job sites OR the associated university. They list research and extensions jobs plus administrative or clerical positions as well.
Also look at the associated university sites for jobs. Working for the state is nice because of the benefits. The pay might start low, but is offset by what you are offered in insurance and other benefits. Plus there are opportunities to get a higher ed degree through some programs.