Usertendo is a Wiki created by Cobweb, 1337Yoshi, and Wiismartey in September 2008. Originally found on ScribbleWiki, after ScribbleWiki was shut down it was moved to Wikia.

Inspired by MarioWiki's Userpedia, Usertendo serves information on the Users, wikis, and events from a fanon perspective, as well has having games and comics. It is a sub-wiki of Fantendo and like Fantendo it is with fanon video games that anyone can make.