iSketch - Isketch is a Free to play, Puzzle, Education, Word, Drawing and Multiplayer video game.
Drawasaurus - Drawasaurus is an online drawing & guessing game you can play with friends or strangers.
Sketcharama - Draw a given word and let the other players guess your sketch.
Excalidraw - Excalidraw is a whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them.
skribbl - Word guessing based on drawing.
StartHQ - Search across all your cloud apps from one place