Wikipedia has a very large number of WikiProjects. A number of them are fully active and have a number of active participants and even elected coordinators who help the WikiProject to run actively. Some WikiProjects are somewhat less active, but still exist as a collaboration and work-tracking venue where interested editors can exchange ideas and information.
This is the main directory of WikiProjects and related administration pages on English Wikipedia. Due to the high volume of WikiProjects (over 2,000), this directory has been split into several "sub-directories" based on the projects' scope.