Quizzes for Pages - Quizzes for Pages is an application to create and share quizzes on your Facebook Page.
minipoll - Create simple shareable polls in seconds
Outgrow - Enabling marketers boost conversion with interactive, beautiful & viral quizzes/calculators.
Twitter Polls - Polls embedded in tweets
doopoll - Create live, instant, editable polls effortlessly
Fast Poll - Create instant, real-time polls for free