This is a great site for those who love categories-and learning English, of course!!
Sporcle offers a lot of "mentally stimulating diversions", such as "The 100 most common words in English", "US English vs UK English", "Finish the Movie Quotes", etc. Why don't you try them?
Subinglés is a nice, useful webpage where you can find loads of songs with the words both in English and in Spanish. I think it's nice to know what your favourite songs say, so have a look!! The only thing is that most of the songs are a bit too old for you but maybe you'll discover some all-time classics.