MilkDrop - 3D audio visualization plugin, compatible with WinAmp plugin API
Saber - Quick and Easy Website Feedback - Stop losing customers to website errors and usability problems. Get Saber's website feedback tool for quality user feedback, suggestions and bug reports.
Magic Music Visuals - Fully-customizable and highly responsive visuals for live and recorded audio & MIDI.
Butter Churn viz - WebGL implementation of the Milkdrop 2 visualizer
Kauna - Kauna is a music visualizer. Kauna renders any sound reproduction in system.
Chatra - Live chat software that helps to increase revenue and collect feedback providing an easy way for website owners to talk to visitors in real time.