Planet X: The Facts, The Myths (Popularity: )

examines the ancient and modern myths about a mysterious planet.
Category: Science\Anomalies and Alternative Science\Planet X

Pickover Report (Popularity: )

Cliff Pickover's blog about science near the edge, including news, concepts and scientists. Extensive links.
Category: Science\News and Media\Weblogs

Smarandache Notions Journal (Popularity: )

articles, notes, proposed problems, conjectures, and reviews are published regarding Smarandache type notions.
Category: Science\Math\Journals

Time Travelers (Popularity: )

online study group interested in time travel.
Category: Science\Anomalies and Alternative Science\Time Travel