At long last, Quake Expo will open Saturday, July 16! Until then check out the Booth Previews. More were added this week.
Update- Check out The Quake Grave video.
Thanks to everyone spreading the word on news sites, blogs, and social media. Besides steady traffic from classic community sites (links below), qexpo2016 got spikes from PC Gamer, Blues News, and the June 22 anniversary of Quake shareware.
June 22, 1996 is considered the birthday of Quake, but retail discs of the full game started shipping around July 22, which hits the middle of the Expo.