Search for a job on Craigslist ... really?
Yes, really, because aggregator job boards don’t go there so you should. An aggregator site is one that sends its ‘spiders’ crawling over the web to gather together links to jobs listings (or other things). Among the biggest are Indeed and SimplyHired. One aggregator that pulls job listings directly from company websites is LinkUp, which means they should have fewer duplicate, out-of-date or scam listings. Niche boards are those that focus exclusively on a particular area of employment - a couple of examples are Idealist, which lists both paid and unpaid opportunities in the nonprofit sector, and Madden Industrial Craftsmen for welders, machinists and other industrial positions in the Pacific Northwest. This About.com Job Searching page has links to lists of niche boards covering all different sorts of work.