The following tutorial, by Stuart Sutherland of Sutherland HDL, is an updated version of a paper presented at HDLCon in March 2000. It provides an overview of the changes in the Verilog-2001 standard.
The guys over at hackshed have been busy. [Carl] is making programmable logic design easy with an 8 part CPLD tutorial. (March 2018: Link dead. Try the Wayback Machine.) Programmable logic devices are ...