Check out the following sight if you're interested in going to Spain to help Spanish buisnesspeople improve their English skills....
http://www.vausys.com/englishtown
This company, Vaughan Systems, pays for your lodging/meals/insurance while you're in the program...all you have to pay for is your flight to Madrid and spending money. I participated in this program at the end of August and it was an awesome experience. I highly recommend it if you're interested in going to Spain, meeting new people, and making lifelong friends...