The books are the best resources if you're trying to learn the language at a fast pace, but there is plenty of information to be found through Google as well. In the end the best way to learn is by doing.
Good luck and welcome to the Clojure community!
4clojure offers many quiz-style questions designed to introduce various concepts of the language. http://www.4clojure.com/
Disclaimer: finding farm is my project. If it isn't what you're looking for I apologize in advance.