Try out OpenLearn

I know I'm biased because they employ me but much about the Open University is brilliant. I love its aim to be open as to people, places, methods....in their work

Take the project making a wide range of high quality learning materials available free of charge on the internet for instance - go to www.open.ac.uk/openlearn and sample some material to find out more.

With the environment currently a very hot topic eg the Severn Barrage/NuclearPower issues in our region, you could go to:

http://openlearn.open.ac.uk/course/view.php?id=1223

and find some very useful stuff on sustainable/renewable energy issues for example.