WolframAlpha

Wolfram|Alpha's long-term goal is to make all systematic knowledge immediately computable and accessible to everyone.        My son says this site can help with anything.
http://www.wolframalpha.com/

The Pursuit of Technology Integration Happiness

The goal is to share educational technology resources as well as discuss general education issues.  He shares a weekly post with resource for across the core subjects. This blog will mostly focus on Secondary Education resources, with an occasional elementary or middle school resource as well.  He highly recommends that you view his Most Popular Posts to see what he discusses the most.
http://edutechintegration.blogspot.com/

Apps in Education

One of the hardest thing with using the iPad in the classroom is finding the time to go through all of the apps in the iTunes Store listed under the education banner. This site has started to list some of the apps they've found under each of the Key Learning Areas. (Thanks Craig for the info.)

http://appsineducation.blogspot.com/

 

Khan Academy

With a library of over 2,600 videos covering everything from arithmetic to physics, finance, and history and 268 practice exercises, we're on a mission to help you learn what you want, when you want, at your own pace.
http://www.khanacademy.org/