Many people know about GiveWell and their top-ranked charities. But how easy would it be to make a better one? In "Why It Should Be Easy to Dominate GiveWell's Recommendations", Rob Wiblin notes the simple solution -- fundraise for whatever organizations GiveWell recommends, and raise more than a dollar with each dollar you receive.
Edited on 22 July 2013 to correct a mistaken citation.
This is actually correct. I know the people who run the organization personally, and have now decided to do more work for them going forward. Therefore, as of today, I'm an official volunteer.