How free are online resources?

One of the best online websites I use frequently is  http://www.prometheanplanet.com/. It targets various types of resources in many subject areas. Have a look under the tab 'Resources' and explore games, quizzes, animations and even lesson plans you can make use of during your teaching experience.

Are such resources free? What should you worry about before downloading such material? Nothing really... all resources are marked as either free or accessed via a payment.

So another question crops up here! Could you use resources you just bought freely without any accreditation? The answer is NO! Paying allows you to use a resource but not making it your own!