Here's a thread where you can publish material you wish to share with the community.
Have you drawn a background, animated a character, designed a GUI or constructed a puzzle?
Do you want other people to be able to take part of your creations?
Reply here.
Just write a short description of what you are donating. Include a link, and a line that says who shall be credited and when it was created.
Ex.
Futuristic Background, 640x400, hi colour
http://www.thelinktothepicture.comMade by Petter Ljungqvist 2004
Images shall be linked, not displayed.
Copyright disclaimer:
People donating material here may not add further restrictions, such as "oh, you can't use my background because I want it to only be featured in good games." or "You may only use my character if you have already released at least three games I can look at".
If you wish to remove your link, just say so. As long as it's here, anybody is free to use it.
Practically, you don't have traditional copyright, since you can't demand people that have used your character in a game to take it down.
Still, people are urged to include the originator in the credits. Failure to do this may result in their name ending up on a black list.