3 links
RollerCoaster Tycoon Tech Info Depot
strategyplanet.com
Offers utilities, save games, and technical information on the game's file formats for developers.
RollerCoaster Tycoon UK
dynamic5.gamespy.com
Features reviews, competitions, tips, and patch and trainer downloads. Also has a discussion board for members.
Thempark's Rollercoaster Tycoon
geocities.com
Offers tracks, parks, trainers, contests, screenshots, forums, tips, cheats, and links.