Electric Ocean used to be a great central location for announcements and dates of stuff like that, but the main person running it had a child and got too busy to keep it up, I think.
The news section here at CMON and the
Paint Contest forum at Reaper are two places I check. As mentioned,
Wyrd Games has contests very regularly, so that\'s a good one to bookmark. The
Forum of Doom is a forum site shared by four different British companies, and they collectively or individually run contests periodically. One of their members, Black Scorpion, is running a contest with a deadline of May 1.
Newbold World runs charity contests and events throughout the year. Their current painting contest closes to entries on June 30, and they also have contests for 2D art and figure sculpting. The last one I know of right now is the revived Chick Challenge, there should be something about it in the news section here, deadline April 29.
Oh, and while it\'s not a classic contest with prizes and categories, if you\'re looking for feedback or deadlines to get you painting, the Golden Toadstool can be just the thing. It runs monthly, and participants vote and comment on each other\'s entries. It has its own forum here on CMON, the Fungal Forum.