Future:Other Future Wikis

There are other Future Wikis out there: There are also wikis with subjects relating to the future:
 * Future of Everything Wiki  (5 pages, inactive since Aug. 2010)
 * The Future Wiki (27 pages, inactive since Jan. 2011)
 * Futurist Wiki (30 pages, inactive since Oct. 2013)
 * Terraforming Wiki (112 pages, somewhat inactive)