Discovery Education: The Clip Art Gallery offers free educational clipart.
egon Public Education Network (OPEN) Clearinghouse
If you've got yourself a new iPad 4 or iPad mini , you'll want to start downloading the best iPad apps straight away. And if you already have an iPad 3 or older iPad, you might want to update it with some new apps. It's the apps that really set iOS apart from other platforms - there are far more apps available on the App Store for the iPad than any other tablet.