There are a number of disputes concerning the Church of Scientology's attempts to suppress material critical of Scientology and the organization on the Internet, utilizing various methods – primarily lawsuits and legal threats, as well as front organizations. In late 1994, the organization began using various legal tactics to stop distribution of unpublished documents written by L. Ron Hubbard. The organization has often been accused of barratry through the filing of SLAPP suits. The organization's response is that its litigious nature is solely to protect its copyrighted works and the unpublished status of certain documents.

Operation Clambake, also referred to by its domain name, xenu.net, is a website and Norway-based non-profit organization, launched in 1996, founded by Andreas Heldal-Lund, that publishes criticism of the Church of Scientology. It is owned and maintained by Andreas Heldal-Lund, who stated that he supported the rights of all people to practice Scientology or any religion. Operation Clambake has referred to the Church of Scientology as "a vicious and dangerous cult that masquerades as a religion". The website includes texts of petitions, news articles, exposés, and primary source documents. The site has been ranked as high as the second spot in Google searches for the term "Scientology".