(UK) University of Manchester (Popularity: )

Topology, Geometry and Combinatorics Group.
Category: Science\Math\Topology\Research Groups

Inconstant Moon (Popularity: )

A new tour each night, with maps, photos, explanations, animations, selected links and music.
Category: Science\Astronomy\Amateur\Solar System Observing

SkyEye (Popularity: )

A calendar of celestial events by the appropriate month.
Category: Science\Astronomy\Amateur\Sky Calendars