Billy Hatcher's Den - Includes articles, screenshots, downloads, fan works, information, facts, links, and forums. - http://billyhatcher.3dactionplanet.gamespy.com/
Sega USA - Official publisher's site. Includes news, humor, and a mini-game. - http://www.sega.com/games/game_temp.php?game=billyhatcher
Open Site - Billy Hatcher and the Giant Egg - Provides information, features, release dates, artwork and character details. - http://open-site.org/Games/Video_Games/Action/Billy_Hatcher_and_the_Giant_Egg/
Sonic Team - Official developer's site. Includes information, features, and screenshots. - http://www.sonicteam.com/giantegg/index_e.html