The use of such diverse sources, however, brings with it an extra responsibility for the author teams in ensuring the quality and validity of cited sources and information. In general, newspapers and magazines, blogs, social networking sites and broadcast media are not acceptable sources of information for the reports. Personal communications providing scientific results are also not acceptable sources. Such materials will need to be made available for the review process and their sources identified in the report to ensure that appropriate knowledge and data safeguards are in place.