This Friday is the deadline for this year's Experimental Gameplay Workshop submissions:

experimental-gameplay.org

The Experimental Gameplay Workshop is a concentrated mini-conference that happens yearly at the GDC. If you're working on an innovative / experimental / original game, we encourage you to check out the web site and submit your work. Also, please forward this announcement to other game designers -- in the past, we've gotten in touch with some very interesting projects solely by word of mouth, and those projects went on to get good exposure at the conference.