SMiki
From wipipedia.org
SMiki was a German-language wiki project BDSM and fetish encyclopaedia, now defunct. In March 2010, it had 1,500 articles. There was also an English language version, but at the beginning of 2009, it was deactivated. Their Commons site has also disappeared.
Like Wipipedia, it was free and the general public was encouraged to take part.
The encyclopaedia covered methods, special interests (body modification and fetish), toys and furniture.