123World (Popularity: )

Alphabetic listing of astronomy sites.
Category: Science\Astronomy\Directories

Animal Magazine (Popularity: )

Articles about all kinds of animals.
Category: Science\Biology\Flora and Fauna\Animalia

Observatoire de la Ville Interieure (Popularity: )

Collects and disseminates information on Montreal's indoor and underground city. In French and English.
Category: Science\Social Sciences\Urban and Regional Planning

World of Dolphins (Popularity: )

Personal site with basic information and links related to dolphins.
Category: Science\Biology\Flora and Fauna\Animalia