TiddlyMap - An interactive concept- and mind-mapping plugin for the personal note-taking software TiddlyWiki based on the Vis.js library. It's free and open-source!

Gesturefy - Customizable mouse gesture addon, which supports over 40 different actions. Features:

Wisdomap - Wisdomap Medicine is a study aid that helps medical students create differential diagnoses and suitable management plans from a presenting complaint and structured revision notes.

Strokeit - StrokeIt is an advanced mouse gesture recognition engine and command processor.

IOctopus - IOctopus is an online mind map service for a dive deep into the mind for the best ideas.

Easystroke - Easystroke is a gesture-recognition application for X11.