• the comp.lang.c FAQ List, by yours truly
  • the Lysator C archive
  • The official ISO/IEC JTC1/SC22/WG14-C home page, including C9X drafts and related material (see also Dave Keaton's home page, which seems to contain some of the same stuff)
  • the notes for some C classes I teach (a sort of on-line tutorial)
  • J. Blustein's C Programming Language Resources
  • Vinit Carpenter's ``Learn C/C++ Today''
  • A C and C++ page by Jack Klein
  • other tutorials and resources listed in question 18.9 of the FAQ List
  • the International Obfuscated C Code Contest
  • Peter Seebach's ``Useless C Page''