Online tools for collaborative lists, organisation and project management
From 37signals.com
The list tool is free: http://www.tadalist.com/
Organisor for lists, files, images, notes: http://www.backpackit.com/
More for project management: http://www.basecamphq.com/
All three can be shared with others for collaborative work. The tadalist tool would work perfectly for TASK.ON kind of people. 😉