This is definitely one of the languages I know the least about.

• Assembly Notes index

Various resources in no particular order (I'll eventually organize them)

• Art of Assembly Language Programming and HLA by Randall Hyde
• CodeBreakers-Journal - Portal for IT-Security & IT-Anti-Security
• Tuts 4 You - Reverse Code Engineering

• cprogramming.com - C/C++ Message board
• Ars Technica Programmer's Symposium

The descriptions are borrowed from the tool websites

• The MASM32 SDK has a simplified console interface that makes it well suited for teaching students the basics of assembler programming within a reasonable time frame. Instead of wasting a semester trying to write the functionality of a runtime library which is almost exclusively an advanced task, the teacher can start students on the basics of assembler in a modern protected mode environment without having to start on trivial tasks like displaying text at the console and getting user input from the console.