Koopa Websites:
cowart.info
The Rabid FUNdamentalist
themushroomkingdom.net
The Mushroom Kingdom: Super Mario Bros. downloads and information
The Mushroom Kingdom: Super Mario Bros. downloads and information. Covers all Mario games and cameos from 1981 to the present. Other content includes multimedia, tips, codes,...
bowsershrine.com
The Bowser Shrine - A Fan Site Dedicated to King Bowser Koopa!
The largest fan site dedicated to King Bowser Koopa! Bowser info, renders, sprites, screenshots, fan fictions, and more... it's all here at The Bowser Shrine!