SlideLizard - Powerpoint plug-in for live audience interaction
OpExams - Design, print, grade and analyze your paper and online exams and quizzes
Pingo - Optimize images for the web quickly 🖼️⚡
Floss Your Score - Have the backpack kid floss your SAT score
Imakiku - Imakiku is an audience response system for real-time voting, posting comments, and surveying.
GradePoint - For students who love to know how they're doing in school