craigslist - craigslist provides local classifieds and forums for jobs, housing, for sale, services, local community, and events
Collective.work - The SaaS-enabled Marketplace for teams of freelancers.
Gumtree - Gumtree is the first site for free classifieds ads in the UK. Buy and sell items, cars, properties, and find or offer jobs in your area.
Queue - Marketplace for Designers - Hire vetted freelance product designers for your startup
Oodle - Oodle is a web-based market of the millions of advertisement and classifieds.
Codemap - The code visualizer you wished for