Generations of Hope has used BitPay to start accepting Bitcoins:
http://www.generationsofhope.org/donate/Let me know if I can provide any more information. I am sure they would be excited to see some actual Bitcoin donations.
Dan
How did they come to accept it?
I think all of the press about Bitcoin during the rally pushed them over the edge. The Director heard several pieces on Bitcoin on NPR.
They used BitPay for the implementation, and put a big logo on the Donate page. As with most nonprofits, you can get to the donate page from almost anywhere on the site.
Now, hopefully it pays off for them

Dan
I think it should. Any objections?