Source and direct link: http://www.mindmeister.com/12213323/best-online-collaboration-tools-2010-robin-good-s-collaborative-map [4]
Links:
[1] http://pulse.veltsos.com/category/it/social-network
[2] http://pulse.veltsos.com/category/it/software
[3] http://pulse.veltsos.com/category/it/visualization
[4] http://www.mindmeister.com/12213323/best-online-collaboration-tools-2010-robin-good-s-collaborative-map