On a serious note, if you haven't written to your representatives, President Bush, etc. about Dar Fur you really should.
This site makes it easy to write to Bush:
savedarfur.org
You should also write to your reps though, I do this all the time and they will usually respond with a form letter on the issue. For this it is very simple to use:
congress.org
And yes, I'm sure many of you have already done this but I am indeed that annoying person you know who sends you e-mails about stuff like this on a regular basis.
Also check out the US Holocaust Museum's website. At night they are projecting pictures of the genocide on their walls.
http://www.ushmm.org/conscience/analysis/details/2006-11-20/photos/