We Are Teachers is once again offering a series of $200 microgrants to educators. This round of microgrants is for educators who will use the grant for professional development. You can learn more about the grants and the application process here. $200 isn't a lot of money for professional development, but in today's tight economy every penny helps.
Here are some related items that may be of interest to you:
Find Money for Your School - Grant Gopher
Donors Choose - Teachers Ask, Students Learn
iLove Schools - Free Classroom Supplies