Spectrum of Physics:
A comprehensive general physics links site. (The editor has some unusual views about
the structure of matter, but they do not seem to have influenced
his links page unduly.)
SETI@home:
Serious project to "harness the spare power of hundreds of thousands of
Internet-connected computers" to analyse the Berkeley SERENDIP radio
data.
Super Physics: Accessible non-mathematical introductions
to some areas of modern physics.
Egglescliffe's Physics Pages:
Andy Gregory's site,
aimed at A-level (in the British
sense) physics students. Egglescliffe is a school in Teesside, England.
American Elements: Online handbook of the chemical
elements (American and otherwise) from a
large advanced materials producer.
AeroSpaceGuide by Vic Stathopoulos.
Numerous space-exploration and solar-system related pages,
very well done.