HRCrossing

Similar in vein to the big job search websites (Monster, CareerBuilder, etc), HRCrossing is part of a network of sites that are devoted to specific areas of jobs. Instead of searching through a website that can have hundreds of thousands of jobs that aren't in the field you're looking for, why not go to one that's specifically for HR jobs?

It has thousands of HR jobs from all over the US and also a variety of articles relating to the field and the job hunt process.