A beautifully illustrated collection of puzzles, riddles, and paradoxes. Features a changing "unsolved puzzle" plus three years worth of previous puzzles.

Database enabling a search across the USA for information about missing people, amber alerts and unsolved crimes.

Unsolved rape and suffocation death of an 18 year old female in Tulsa, Oklahoma, USA. Information about the mother's 'caravan to catch a killer' tour and the campaign for DNA at arrest. Includes information about the killing and a blog.

Members try to solve unsolved crimes, particularly murder. Information on the founders, mission statement of the organization, meeting dates and news updates.

Online resource to report criminal activity anonymously regarding unsolved murders and wanted criminals. Information about the organization, listing of unsolved crimes, member links and online tip submission form.