OpenGameArt.org is now accepting donations. I won't go into great detail about it here, as the relevant information is all available on the donation page. I would, however, like to reiterate a couple of things:
* Donations will be put toward art commissions.
* There is no expectation that a user should donate, nor is there any special benefit for doing so, apart from recognition.
* I have enough personal funding to keep this site going regardless of donations, but any extra funds will bring in more commissions, which means more art for the community.
If you have any questions (including ones about site costs and whatnot), please ask them here. I'd like to keep things as open as possible.
Thanks!
Bart