This entry is the same as the post in my UCB of the same name.
Nintendo:
Random Nintendo - "A fusion of all things Nintendo"
Gamecube Advanced - "The world's best source for Nintendo"
Mario:
Mario's World - Nintendo's official Mario site with Mario's history, media downloads, and info on upcoming games
Mega Man:
Kirby:
Kirby's Rainbow Resort - History, multimedia, fan art, news, and coverage of every Kirby game ever made
Bubble Bobble:Miscellaneous:
NESCapades - A collector's personal site. It's insane.
How Nintendo Are You? - A fun 6-question quiz designed to tell you how much you love Nintendo
College Humor - Nintendo A Cappella!