/cow/
/cwc/ (aka Krapple, Legi0n or 789chan) was and still is a Chris-related image board.
Ivy has alleged that Chris had discovered the site, based on a tip off from a successful white knight. Fortunately, his response was that the colors bothered him and that there were "too many words."
History
/cwc/ was originally set up on the Krapple board, but on 1 November 2009, /cwc/, as well as the entire board, was permanently deleted for CEO having terabytes of anime on server space. It was brought back soon after on a spin-off chan on Legi0n. Legi0n also later shut down due to some drama with some of it's admins in August 2010, and the board was moved once more to 789chan, where it is currently hosted. While hosted at 789chan, /cwc/ was re-purposed as a general lolcows board rather than a Chris-centric one, though Chris still remains the most popular topic and the board's namesake.
Derivative boards
Due to the high volume of posts on /cwc/, the Legi0n staff decided to create additional, more specific chris-related boards. /cxc/ (fanfics and copypastas), /kcwc/ (chris-related songs/music videos), /CWCrt/ (trolling schemes), and /library/ (to archive threads of major importance). The move to 789chan eventually dropped all of these boards, while adding /L/ in place of /library/.
Other
/cwc/ also operated an IRC channel and a dedicated trolling wiki back in the Legi0n days. The wiki and IRC channel have both since shut down, but 789chan now runs a new IRC located here.