Twiddla is #20 in Top 10 Visual Collaboration software
Twiddla is a no-setup, web-based meeting playground. Mark up websites, graphics, and photos, or start brainstorming on a blank canvas. Browse the web with your friends or make that conference call more productive than ever. No plug-ins, downloads, or firewall voodoo - it's all here, ready to go when you are. Browser-agnostic, user-friendly.
Twiddla video
Positions in ratings
#20 in Top 10 Visual Collaboration software
Latest news about Twiddla
2008. Twiddla takes home SXSW award despite sluggish performance

Collaborative whiteboarding applications can be invaluable for geographically dispersed small groups engaged in brainstorming sessions. Allow me to introduce Twiddla, a free tool that facilitates marking up media, live websites, and organizing ideas on a virtual whiteboard. It also offers live communication capabilities through text chat and free VoIP conference calling, eliminating the need for additional plug-ins or software. This application recently received a technical achievement award at the SXSW Interactive Web Awards. Although it boasts impressive technology, my testing revealed occasional speed and local resource challenges. While its interface is user-friendly and menus are quick to respond, I encountered instances where the application was almost unusable. Nevertheless, there were also occasions where it performed exceptionally well.