Here are some useful resources.
Khan Academy If you have or know any children who are in school, this is an awesome resource, Sal is an excellent and talented teacher . The video's are ten minutes in length and of very good quality.

This Javascript exercise by John Resig ( Jquery creator) is a good way to learn some advance javascript

This Clojure article is a pretty good way to get your feet wet in getting started with Clojure programming./users/kiran/2011/01/index.html