This blog run by Meredith Lowe shares archives and records management jobs from all over the country (and sometimes world). Frequently updated and easy to narrow your search via geographic categories and subject, requirements, and job title tags.
SAA Career Center
The Society of American Archivists’ Career Center allows you to share your resume, search jobs, and sign up for job alerts. Please note that to do anything other than search jobs you must sign up for a login, and job advertisers on the career center must pay to submit job postings – so the listed opportunities are much fewer than on aggregator sites.