Superguy was originally a creative fiction writing group on the now-defunct UMNEWS mailing list service. After UMNEWS collapsed, the mailing list became internet-based.
Originally a spinoff of another writing universe (SFStory), Superguy was a forum for the posting of original, comedic fiction based loosely on superheroes and related concepts, and is one of the first examples of a shared-fiction universe on the Internet. Superguy has the additional distinction of having been active for over two decades, with new stories posted as recently as 2011. Superguy existed during the birth of the modern Internet culture, and along with SFStory helped illustrate the potential of the medium to mainstream users right when the Internet began to actually see mainstream use. It has survived much longer than similar Internet-based shared universe writing groups, diminishing in activity along with SFStory only when the webcomic trend became widespread.