Code.org is a non-profit organization that aims to encourage people, particularly school students in the, to learn computer science. The best part is that it is FREE! Many school do the hour of code, but there is also a free full curriculum for grades K-12.
COST: FREE!
PRO'S: Free K-12 curriculum, free online PD, one day Hour of Code, FREE workshops for training if you register for one CONS: Mostly all online