Preprints archives
| Archive Ouverte UNIGE | There |
| Mathematical Physics Preprint Archive (mp-arc) | USA, Spain |
| ArXiv | There |
| Hyper Articles on Line | HAL |
Lecture notes, theses, etc.
News, opinions
Moon of Alabama
The Gray Zone
Consortiumnews
Covert Action Magazine
Brave New Europe
Naked Capitalism
Counterpunch
Le Monde diplomatique
Les crises
Le grand soir
Frédéric Lordon
Various (Sciences)
Accromath
MathOverflow
Physics StackExchange
Tricki
Terrence Tao's blog
Timothy Gowers's blog
Encyclopedias
Scholarpedia
Mathworld
World of Physics
World of Chemistry
World of Astronomy
The On-Line Encyclopedia of Integer Sequences