Complex sentence: Wikia, Inc. manages Wikia, a collection of over 1000 wiki communities, including Wookieepedia, a "Star Wars" wiki, and hosts Memory Alpha, a "Star Trek" encyclopedia, Uncyclopedia, a parody encyclopedia.
Split into simpler sentences: Wikia, Inc. manages Wikia, a collection of over 1000 wiki communities, including Wookieepedia, a "Star Wars" wiki. Additionally, Wikia, Inc. hosts Memory Alpha, a "Star Trek" encyclopedia, and Uncyclopedia, a parody encyclopedia.