By the way, I don't know if anyone mentioned this, but there is now a study group on OpenStudy for SICP at http://openstudy.com/channels/MIT+6.001+Structure+and

By the way, I don't know if anyone mentioned this, but there is now a study group on OpenStudy for SICP at http://openstudy.com/channels/MIT+6.001+Structure+and+Interpretation+of+Computer+Programs%2C+Spring+2005 http://openstudy.com/channels/MIT+6.001+Structure+and+Interp... . Moreover, joining OpenStudy no longer requires an invite (it used to, though incoming links from MIT were automatically assigned invites).