I have a new keyboard and want to learn to play?

Is there a website that will show me an easy way to learn how to play. I can read music a little bit but have a long way to go. Any suggestions from experienced players? Ihave a really nice Casio player with stand and instructions but the instructions are a bit difficult. At one time there were letters you could put on the keyboard and music books with corresponding letters. Wish I could find those.