http://interactivemedia.seancohen.com/fa2012/conley_jackie/assignment9/jackie_conley_spritely-0.6-sample-code/index.html

A website I enjoyed browsing on that used sliding parallax was http://www.nintendo.com.au/gamesites/mariokartwii/ .

It the slider gives you the similar sensation of playing racing games on the wii, which I thought was clever and creative.