Assembler and tutorial

Can anyone link me to a good assembler and tutorial for Asm. I've tried Google but all I'm finding is broken links and DOS programs.
I'm using a 64 bit processor and am already familiar with programming in general.

>>19
if another person would, normal /prog/dylotes would pose a minority, risking to bring /prog/ into a new dark age.

yes thats right, we are 3 people in here. and yes YHBT.