SIGGRAPH has a new program (since 2009) where real-time graphics are shown before the SIGGRAPH Electronic Theater, on the big screen in the biggest room in the convention center. The intent is to become the showcase for the best real-time graphics, just as the Electronic Theater is the showcase for the best prerendered graphics.
If you're interested in submitting your demo, visit
http://www.siggraph.org/s2010/for_submitters/live_real-time_demos. The deadline is April 28th, so there's just about a week left.
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Submitted by ryg]