Dan Markstein’s Toonopedia is an online comic book nerd’s Rosetta Stone. Everybody’s here; from The All-Star Squadron to the Zoo Crew. Hell, even guys like Black Lightning, Blue Falcon and Dynomutt made the cut!
Some nice stuff here as each hero/group is given their own page that details their origin, first appearance, legal issues (see Captain Marvel, Marvelman, or hell anything with Marvel in the title), a short look at the career(s), current status and more.
It’s a Wikipedia just for comic book junkies. Sure all the big names are here like Batman and Spider-Man, but the cool part about the site is how many of the lower level comic characters are represented here (how many of you out there remember Shang-Chi Master of Kung-Fu, Moon Knight, and the Mighty Mightor?). And of course with an entry for Underdog, it gets my instant stamp of approval. Check it out.