These are a few of my favorite links:

US Event horse: lots of articles and information about horses and combined training

Eventing USA: United States Combined Training Association home page.

The Spark.com: Comical tests and theories and games.

Joe Cartoon: Fun games and interactive stuff.

Deja.com: One of my favorites, contains newsgroups from USENET for just about any topic imaginable.

GDCTA: Home of Georgia's dressage and combined training association.

R and R Stables: Web site that I designed for a local boarding stable.