http://www.william-shakespeare.info/william-shakespeare-globe-theatre.htm
http://www.shakespeare-online.com/playanalysis/romeoplayhistory.html
Allot of information of there.
http://www.shakespearesglobe.com/about-us/history-of-the-globe/original-globe
http://wiki.answers.com/Q/Where_did_Shakespeare_get_the_idea_for_Romeo_and_Juliet
http://borg-ibk.ac.at/aktivitaeten/shakespeare/08_Previous%20versions%20of%20Romeo%20and%20Juliet.htm
Some from here.
Pictures were from Google images.
Writting and information was put in my own words form the information i gathered from those sites. Except quotes or reviews naturally.
If theres any mistakes or you have your own input please contact me under my contact details on the home page.
http://en.wikipedia.org/wiki/The_Globe_Theatre
http://wiki.answers.com/Q/How_many_versions_of_Romeo_and_Juliet_are_there
Not very much as those sites did not seem very reliable.
Bibliography!