The Verification Handbook for Investigative Reporting
http://verificationhandbook.com/book2/

The Verification Handbook for Investigative Reporting is a new guide to online search and research techniques to using user-generated content and open source information in investigations. Published by the European Journalism Centre, a GIJN member based in the Netherlands, the manual consists of ten chapters and is available for free download. This will be added to Business Intelligence Resources Subject Tracer™. This will be added to Journalism Resources Subject Tracer™. This will be added to Information Quality Resources Subject Tracer™. [Thanks to Sabrina Pacifici for this excellent find]