http://en.wikipedia.org/wiki/Multiverse#Multiverse_hypotheses_in_physics
I like this graphic better because it looks more like a cosmic hard drive.
http://en.wikipedia.org/wiki/Fringe_(TV_series)#Parallel_universe
Quite a fascinating premise for a TV show, but its unfortunate that LN wasn't on FRINGE more often.
http://ca.ign.com/articles/2012/05/08/fringe-leonard-nimoy-and-john-noble-talk-william-bells-return,
http://collider.com/leonard-nimoy-fringe-season-4-finale-star-trek-2-sequel-interview,
http://io9.com/5909318/leonard-nimoy-explains-why-he-couldnt-resist-returning-to-fringe
http://bluray.highdefdigest.com/7177/fringe_s4.html
Exploring various theoretical concepts is certainly fascinating, but many people require substantial proof.
http://www.preposterousuniverse.com/blog/2011/05/26/are-many-worlds-and-the-multiverse-the-same-idea