GoPad for Schools - School Management

skribbl - Word guessing based on drawing.

Sawyer - Discover a wonder-filled world of kids classes, camps, events, and activities, right in your neighborhood

LetsDraw.It - Guess and Draw, Drawing Battle, Pictionary, Copy picture - online drawing games where you can compare your skill with others.

Yusp - Yusp is a next generation, real-time personalization engine having all product modules as defined by Gartner for various business models.

gartic.io - Draw, guess, and win!