Scientology splinter groups

Although "Scientology" is most often used as shorthand for the Church of Scientology, a number of groups practice Scientology and Dianetics outside of the official Church. Such groups are invariably breakaways from the original Church. The Church takes an extremely hard line on breakaway groups, labeling them "apostates" (or "squirrels" in Scientology jargon) and often subjecting them to considerable legal and social pressure. Breakaway groups avoid the name "Scientology" so as to keep from being sued, instead referring to themselves collectively as the Free Zone or Ron's Org.

Source: http://en.wikipedia.org/wiki/Scientology