http://www.charitynavigator.org/ Also, if any of you are doing home improvement this weekend and are planning to go to Lowe's, any contribution you make to the Red Cross in-store will be matched:
http://biz.yahoo.com/prnews/050711/clm026.html?.v=12 Correction: That Lowe's link is from July but if you check
Lowe's site, they say they are matching any in-store contribution up to $2 million for Hurricane Katrina.