Big Decisions - An app that helps you make better decisions
Quizzes for Pages - Quizzes for Pages is an application to create and share quizzes on your Facebook Page.
Flotsm - Anonymously seek opinions on everyday decisions
Outgrow - Enabling marketers boost conversion with interactive, beautiful & viral quizzes/calculators.
QallOut - Freestyle, head-2-head debate competitions over live video
Poll Everywhere - Audience response system that uses mobile phones, twitter, and the web. Responses are displayed in real-time on gorgeous charts in PowerPoint, Keynote, or web browser.