Any of the wikias that popup for a game are also good examples. I feel someone could make a targeted wiki for a game, add their own ads, and become #1 community resource for a game by doing it early enough. Who doesn't want to be #1 on Google for "<Game> Guide" with an ad per page?
Personal example:
http://cases.goaggro.com/ (CS:GO case opening simulator)
Other examples:
http://www.survive-ark.com/taming-calculator/ (ARK taming calculator)
http://www.wowhead.com/ (World of Warcraft loot database)
Any of the wikias that popup for a game are also good examples. I feel someone could make a targeted wiki for a game, add their own ads, and become #1 community resource for a game by doing it early enough. Who doesn't want to be #1 on Google for "<Game> Guide" with an ad per page?