Things I'm interested in:

• Universidad de Valladolid programming contest problem archive. Also see the past problem sets for ACM contests.
• The ACLU. Also see recent Supreme Court rulings.
• Cryptology
  • Bletchley Park
  • The National Cryptology Museum, the official NSA site. (Lots of nice pictures.)
• Cycling, especially the Tour de France. Also see photos by Graham Watson, and the UCI official site. Also see SteepHill.tv for lots of cycling video and photos. Climbbybike.com, a site with info on climbs by bikes, of course.
• The Columbus Blue Jackets
• The Aston Villa football team of the English Premier League.
• Baseball, particularly the Cleveland Indians.
  • USA Today's baseball coverage
  • The official page of Major League Baseball
  • Sportsline's coverage of baseball.
  • Total Baseball.
  • Baseball Weekly.
  • Baseball Links,
  • Baseball Newstand.

Some other fun Web pages:

• Hot AIR from The Annals of Improbable Research at MIT
• News of the Weird
• The Three Stooges. Nyuk, Nyuk, Nyuk!
• The Epicurious Page (good eating).
• America's Test Kitchen (more good eating)
• The Food Network (even more good eating)

Some places with good info for creating HTML documents:

• Project Cool, a list of many websites to help you create a page, organized by topic.
• HTML Documentation by Ian Graham
• How to write HTML documents
• Beginner's Guide to HTML
• A list of HTML tags
• Instruction from WebCom
• CGI