Wikipedia has some information, but take it with a grain of salt, as Wikipedia is not the most reliable of sites. Their entry on the character Vulcan, for example, includes a link to "Ace Comics" (the title published by David McKay), which in no way ever featured Vulcan from "Ace Comics" (the publisher). Plenty of other mistakes, too, such as links from character pages to "creators" who weren't even born when the characters were first published.
