Hi kpk,
The Verilog Golden Reference guide is very good material indeed. To my humble opinion it is for quick reference and will be usefull to you after you learn the basics and make some digital systems with verilog.
I suggest you try the interactive tutorials from Aldec - Evita Verilog.
here is the link:
**broken link removed**
It is free, but requires a brief registration...
The tutorial is flash based and you can catch the verilog concepts and basics in no time, as well as enjoying yourself. Good Luck