Links:

C short course lecture notes
www.tenouk.com
Program example: initializing a pointer
Program example: using pointers
Program example: using pointers  operator
stddef.h
Program example: NULL  pointer and empty string
Program example: pointers and array
Take a look at the following pointers and array example
Another program example: pointers and array access
Program example (run at command prompt)
Another pointer-to-pointer example
Program example: void pointer