There is also an active community that is happy to help you get started. You can join them on IRC (#clojurescript on freenode.net), on Slack, and on the mailing list. In addition, please ask me any questions by or asking on the PurelyFunctional.tv discussion board.
Who makes it?
ClojureScript is maintained by Cognitect, the same company that maintains Clojure itself. It is under very active development and the versions are now in lock step. Since version 1.7, many libraries work out of the box in both Clojure and ClojureScript.
Not your typical Compile-to-JS language