From MF: Penguins for President?

For what it’s worth, the Republican National Committee is running Microsoft IIS on Windows 2000, while the Democratic National Committee is running Apache on Linux. As of this writing, November 5, 2003, the RNC has an uptime of 4.26 days (maximum of 39.04) and a 90-day moving average of 16.91. The DNC has an uptime of 445.02 days (also the maximum) and a 90-day moving average of 395.38 days.

The site also lists what individual candidates are running on their campaign websites.