The classifieds in the Village Voice and The New York Times (either printed or online versions) have extensive listings for all kinds of positions. If you have administrative skills, the following online Temp Agencies may be helpful:

OfficeTeam - www.officeteam.com >>

Robert Half - www.roberthalf.com >>

Career Blazers -  www.careerblazers.com >>

Headway Corporate Staffing - www.headwaycorp.com >>

Core Staffing Services - www.employcore.com >>