Beth's blog, a non-profit technology blog I've started reading just posted a donation by the "Digital Influence Group" who'll will donate $10 for every comment made on their blog. Easy enough...
http://beth.typepad.com/beths_blog/2008/05/a-comment-on-th.html
(this would be the actual link, and they're capped at 5 grand):
http://www.digtrends.com/2008/05/15/this-cant-wait/
Digg it! (anyway)
got an email from Beth clarifying it wasn't actually her blog that was doing the donating. still nifty, imho