Outgrow - Enabling marketers boost conversion with interactive, beautiful & viral quizzes/calculators.
Love for the Elderly - Send kind letters to elderly folks without family
Quizzes for Pages - Quizzes for Pages is an application to create and share quizzes on your Facebook Page.
Letter to Yourself - Send a physical letter to your future self
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.
DocuPost - Sustainably mail letters, checks & postcards online from 75¢