I am an Inria researcher in computer science (details on my research / computer arithmetic page).
Blog and social networks:
My blog (not everything in English).
Facebook: vinc17fr (mostly in French).
LinkedIn (which I use very little).
Identi.ca (which I no longer use).
Development: GitHub (vinc17fr) – GitLab.com (vinc17) – Open Hub (vinc17).
My hobbies: computer science, mathematical and logical puzzles, the number 17 and Yellow Pigs, early music, and I am also a cinephile and watch movies almost exclusively in movie theaters (500 to 600 each year, partly in various festivals).
My research / computer arithmetic page.
Unix/Linux: utilities, links.
My pages on free software: the Mutt mailer, the Firefox web browser and TeX/LaTeX.
My page on Maple (currently, how to use it from the Perl language).
My page on software patents.
My solution of challenge 14 (on Golomb's sequence) of Performance Calcul (1996, in French): [dvi] or [gzipped postscript] or [PDF].
My list of 17's.
My maths page.
My pages on the Championnat International des Jeux Mathématiques et Logiques (International Championship of Mathematics Puzzles), in French.
My cinema pages (in French).
My pages on the Neopolis game (in French).
Interesting RSS feeds (obsolete).
Some very old, outdated pages, but which can still be useful, just in case:
Acorn, ARM and RISC OS: some programs for RISC OS with their source, documentation...
Zaurus and Nokia N810 (Linux-based PDA's).
My game TETRHEX for the Atari Falcon 030.
W3C. Validate your web pages. Accessibility: WAI (Web Content Accessibility Guidelines), BrailleNet.
The Digital Standards Organization, for free and open digital standards.
EuroBillTracker: Follow your Euro bills in their track.
Web (general, Javascript not required):
Respecting your privacy: Ecosia, DuckDuckGo, Qwant; metasearch engines based on searX: Eelo, Roflcopter.
Archives: Internet Archive (with its Way Back Machine, public domain movies, and so on) and WebCite.
Images: Google Images, TinEye.
News (USENET): Google Groups.
FAQs.
Internet-connected devices: Shodan.
Scientific publications (maths, computer science, physics, etc.): CiteSeer.IST Scientific Literature Digital Library.
LaTeX Search (mathematical equations in scientific publications).
Math: constants (Inverse Symbolic Calculator) and integer sequences.
Free software: FSF Free Software Directory.
Software sources: Krugle, Debian Code Search.
Man pages of various operating systems: FreeBSD Man Pages.
RFCs: RFC Editor site and FAQS.ORG site.
Movies: IMDb (advanced search page) and Les Gens du cinéma.
File extensions: DotWhat, FileFormat.Info, FileInfo.com, FILExt and File-Extensions.org.
Maps: OpenStreetMap, Google Maps, Mappy (France).
Dictionaries, encyclopedias: Wikipedia, Wiktionary, dict.org and Dictionarist.com.