LanceBase - Freelance community social center.
indeed - Find jobs using Indeed, the most comprehensive search engine for jobs.
Fiverr - One marketplace, millions of professional services.
Picoworkers - Earn money from doing short, easy tasks similar to Microworkers. Picoworkers is the best alternative to Microworkers I ever find.
LinkedIn - LinkedIn is a business-oriented social networking service, mainly used for professional networking.
Upwork - Forget the old rules. You can have the best people. Right now. Right here.