In the spring of 2010 I ran the Madison Ultimate Frisbee League and did a large study about making teams. I published the results at MadisonUltimate.com.

I wrote the site entirely myself using HTML5 and CSS3. While the survey was going on the site compiled the data in real time. When the survey ended, I switched the site to serve a cached version of the page to save processing power and reduce the load time for the user.

Nginx

nginx is a lightweight, high-performance Web server/reverse proxy and e-mail (IMAP/POP3) proxy, licensed under a BSD-like license. It runs on UNIX, GNU/Linux, BSD variants, Mac OS X, Solaris, and Microsoft Windows. Nginx powers 20-26% of all websites commonly surveyed, including most of the high-traffic sites.