Online Guides to Learn C

Some online guides to learn C:

http://www.cprogramming.com/
http://www.iu.hio.no/~mark/CTutorial/CTutorial.html
http://www2.its.strath.ac.uk/courses/c/
http://aelinik.free.fr/c/index.html
http://www.learn-programming.za.net/learn_c_programming.html
http://www.physics.drexel.edu/students/courses/Comp_Phys/General/C_basics
http://www.cs.cf.ac.uk/Dave/C/
http://www.programmingtutorials.com/c.aspx
http://www.friedspace.com/cprogramming/intro1.php

Post some others to make list bigger