Great for economics teachers but also for critical listening skills. Ever wonder where all the hitchhikers have gone, or why taking a quarterback in the first round of the draft is so important? Freakonomics can tell you.

This has been in Beta for a while but they have a pretty good free version available. This allows for online question response and instant feedback like a set of classroom clickers some of us use. It works well and is free so check it out.

More than 1600 federal teaching and learning resources organized by subject: art, history, language arts, math, science, and others -- from FREE, the website that makes federal teaching and learning resources easy to find.

Interesting site that allows you to search for events by category including education. You put in the location and it will search for educational events within your geographic location.

This is an interesting site. Has quite a few resources for teachers including some free posters for your class that will help students search more effectively.