A few sites I like, or I consider very useful...

Page d'accueil de l'AFUL - L'association Française des Utilisateurs de Linux et des Logiciels Libres. The French Linux & Free Software Users Association.
ACM - The American Computer Machinary, etc.
IEEE Computer Society - The IEEE Computer Society, yes.
AFIA - Association Française d'Intelligence Artificielle - The French AI Association.

Scilab - Free scientific software - Currently working with the Scilab's people at INRIA.

CSLI - The Center for the Study of Language and Information, at Stanford University.
LIP6 - Laboratoire d'Informatique de Paris 6 . The computer Science Laboratory of Paris 6 University.

John Perry - He is the former director of CSLI. Have a look at his light essays ...
Jean-Claude BELLAMY - An excellent site for understanding computers, software and programming, particularly for beginners. Jean-Claude knows how to be simple though not simplistic. This is no xxx for the blockheads. Jean-Claude works at my R&D center, and, well, when he speaks, one listens.
This site is mainly in French.

Le Monde diplomatique - A french monthly newspaper, with a strong political anti-globalisation commitment. Editions in other languages exist, in particular in English.
Le portail des copains - The "friends' portal". Various and interesting sites with politics, humour,... In French .
Les Chroniques du Menteur - One of the sites in Le portail des copains. Funny while interesting "chroniques". In French .

TextPad - A very nice shareware text editor for Windows (yes, I am a Linux and also a Windows user. Nobody's perfect...).
www.pair.com - This web site hosting company. Located in Pittsburg, Pa.

Thalatel - Thalassothérapie - The place where I stopped smoking. They deserve this discrete ad. In French, Catalan, and Spanish.

Peintre de Bretagne - Britanny's painter - Denise Laz, peintre breton, allez voir son exposition - Denise Laz, a breton painter, visit her virtual exhibition. In French.