Genshiken (shortened form of Gendai Shikaku Bunka Kenkyūkai) is an otaku college club to encompass manga, anime, and video games into one club rather than separate clubs. Their club activities are also geeky such as their bi-yearly trip to Comifes.
The Genshiken clubroom is located in Shiiou University. The original date of Genshiken's formation is unknown but the furthest known date of the club's existence is 1987. The only evidence from this far back is a previous publication Genshiken made.
The club's name is derived from parts of the characters in the Japanese romanization: Gendai Shikaku Bunka Kenkyūkai (Translation: The Society for the Modern Visual Culture). Since that is a long title, people just call this club Genshiken.
Note: The original club president has been the club president starting from the formation of Genshiken until he retired his position to Madarame because of his senior thesis.
See the Genshiken (franchise) page for more information on the series.