xenu.net; Probably the best critic's page at this time
Ron Newman has an extensive page on Scientology from a critic's viewpoint.
Modemac has an introductory page about Scientology from a critic's viewpoint.
Watchman Fellowship's articles on Scientology.
FACTNet is being sued by Scientology and was raided by the church.
Scientology has a web page finally. Of course, they don't link to us.
Rick Ross has tons o' stuff on many different cults and cults in general. Rick is an exit counselor.
The Free Zone is a group of people who still follow the Hubbard Tech but dispute the current Scientology leadership.