Some links for those of you who are interested in spending a summer abroad while practising your English:

http://www.uk-school-of-english.com/
http://www.ihnewcastle.com/
http://www.travelstay.com/
http://www.ukstudentlife.com/index.htm

And if you can't find what you are looking for, just ask and I'll try to help you.

I just came across something that you might find interesting: a list of strategies for foreign language learning. Just by implementing some of them (although I know you must be using some of them already), you will certainly improve your English. Just try, you won't regret it!