Useful crowdsourcing links

Most of the list is from Aliza Shermans book on Crowdsourcing: Answers Wikianswers Yahoo Answers Design Guerra Creativa 99 Designs Crowdspring Branding Squadhelp Ads Creative Prova Tongal Idea Generation Ideaoffer Innocentive Ninesigma Ideaconnection ennovent Cofundos Instant Workforce Clickworker Cloudcrowd Crowd Flower Samasource Mech Turk Ning Grouply Zooppa Whinot Poptent Crowdtap Crowd Testing userteting Mob4hire […]