www.palmspringspilots.com
Our association gives out $2500 grants every once in a while. I'm pretty sure you have to be a member though, which if you live in the area is a good thing. Also, they put links up of various aviation scholorship programs that are run in the local area. Up until recently they had a Coachella Valley aviation scholorship up on the site.
Also, if you are prior military don't forget about Imagine America's MAP scholorships.