I'd like to add that there are also people working through SICP on Curious Reef (my social learning website): http://curiousreef.com/class/structure-and-interpr

I'd like to add that there are also people working through SICP on Curious Reef (my social learning website): http://curiousreef.com/class/structure-and-interpretation-of-comp/ http://curiousreef.com/class/structure-and-interpretation-of... It's an easy way to keep track of your work and collaborate with other people.