Free Resources for Evaluation and Social Research Methods.
But also do this:
Use search engines that contibute to charity. Ecosia and goodsearch are two of them.
Here are some reviews
Also visit these sites often and click to donate
The Hunger Site
http://www.freerice.com/ click on the correct meaning of words and they donate rice.
http://ecologyfund.com/ecology/_ecology.html rainforest, pollution, etc.
http://www.care2.com/click-to-donate/ the usual, clock to donate
http://www.bhookh.com/ Feed a child in India