CreatingMinds.org seems to be mainly targeted at artists and writers, but I don't see why the principles, techniques, and methods couldn't be applied to other things like software development...or even business.
There is a lot of good articles & tools on this site for unleashing your creative side...get you really thinking in new directions....both as an individual...or as a group.
If you are participating in the
GTD experiment here at the site, after you get the clutter out of your mind by writing it all down, you might want to use some of that free mental space to do some really creative stuff.
You never know...you might come up with the next brilliant million dollar idea.