WWW,
Findiing an ISP in Spain is one thing, but assuming you will be using the telephone line to connect to the www (he he...) there is no guarantee that the connection speed allows you to make a decent use of the ISP.
I know of one Instructor in Jerez, who gets extremely low bps on his internet connection. To send off one email it takes him sometimes half an hour.
just something to consider...
regards
Iso