Try:

http://www.strath.ac.uk/CC/Courses/NewCcourse/ccourse.html
http://www.lysator.liu.se/c/c-www.html

I found one  C book for pic: is usefull :

PIC C
from www.bluebird-electronics.co.uk

Fernando



>Can anyone recommend a beginner's book on C for PIC micros?  Something
>most palatable, which addresses only on those topics most typical of
>microcontroller applications, rather than a general coverage?  Any good
>online resources, tutorials, illuminated examples?
>
>Thanks,
>James Salter

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.