Quizzes for Pages - Quizzes for Pages is an application to create and share quizzes on your Facebook Page.
uberflip - Organize and Centralize ALL of your Content in minutes
Outgrow - Enabling marketers boost conversion with interactive, beautiful & viral quizzes/calculators.
CoSchedule - CoSchedule is the #1 marketing calendar that helps you stay organized and get sh*t done. Plan, produce, publish and promote your content.
doopoll - Create live, instant, editable polls effortlessly
Embedly - Embedly helps publishers and consumers manage embed codes from websites and APIs.