A "how to" about embedding Khan Academy exercises in Google Coursebuilder. Over my head, but worth being aware of this kind of capability becoming available.
A kind of maths-specific Khan Academy. I was wondering at first if 'Patrick' might want to mix in some Citizen Maths video tutorials, but it seems he just features his own. Could be that someone else could mix together his stuff and CMs if there were any areas in which they complemented each other. His stuff is mostly beyond Level 2, however.