If you thought the internet had done it all, then look no further than a new site called Pindex, supported by no less than Stephen Fry, who does many of the voice-overs for their videos.
Pindex is Pinterest with an educational theme. Anyone can use Pindex to find educational stories and videos, but it will also prove to be an invaluable tool for teachers and educators.
You can find out about anything and everything from Terraforming Mars, Space Time and Gravity to Big Cats and Fun Science Experiments.
This is definitely worth a look and I can only see this site getting bigger and bigger.