And be sure to review all the useful articles, books, and more in the Temping Resources section of Quintessential Careers.

CORESTAFF Services -- a progressive staffing service (temping, project staffing, temp-to-hire, etc.) with more than 100 U.S. offices and on-site client locations serving thousands of companies in a wide variety of industries. Some of the career fields they specialize in are: accounting/finance, banking, customer service, graphic design, information technology, office administration/support, and sales and marketing. Free to job-seekers.

Kelly Services -- one of the higher-profile national temp agencies. It’s been around since 1946, has more than 1,800 offices around the world, and claims to provide placements to more than 750,000 employees every year.

Manpower -- has offices in 50 countries (and more than 1,250 in North America). Like the other large agencies, they offer short or long term postings, as well as temp-to-perm (which they call contract-to-hire) opportunities in a wide range of fields, but they seem to specialize in technical jobs.

Net-Temps -- designed specifically for the staffing industry, job-seekers can search for your ideal job on a national, state or city level, as well as by job titles or skills. Free.

Norrell -- has 1,350 offices in the United States, Canada, Europe, Australia, and Asia. They offer short-term placements, long-term placements and temp-to-perm placements.

Temping.com -- a free service that enables job-seekers who are looking for temporary employment to find a staffing service that fits your needs. You can also post your resume and search for temp jobs. Also includes useful information to help you understand the industry better as well as succeed in your career in general. Free to job-seekers.

Temp 24-7 -- aims to be an online community for temps. It includes an advice column, "Temp Tales of Terror," and a job resource page where you can find new temp agencies or even nontemp jobs.

Westaff -- for job-seekers looking for temporary employment and temp-to-hire opportunities in the areas of office, light industrial, and light technical. Search for jobs and send your application to one of the 350+ local offices. All job-seekers -- entry-level, career professionals, students, returning to work, even variety-seekers -- can find opportunities. Free to job-seekers.

worknow.com -- the online arm of Olsten, an organization with an extensive network of staffing offices in the United States. Job listings range from short-term entry-level positions to permanent placements for seasoned professionals. Job-seekers can search for jobs or build an online resume or send your resume to a local Olsten office. Free to job-seekers.

workrover.com -- a great site for all job-seekers seeking a part-time, seasonal, or temporary job. Job-seekers complete an "application," which then allows you to apply for jobs. You can also search for jobs by type, company, and driving distance. Free to job-seekers.