Sit for Change
Sit For Change brings together the practice of meditation with the promotion of peace, compassion and respect for human dignity.
Check out their website. The 10 day marathon meditation--join in as much as you'd like or sponsor someone who is sitting--begins today (Dec. 21, 2005) and goes through New Years.
I have not officially joined their meditation at this time so am not soliciting donations for myself. I just found out about their site yesterday and it's a bit fast for me to join up with things like that! They do have a general donation fund on their site.