This is an old revision of the document!
http://www-users.cs.york.ac.uk/~jowen/player/playerstage-manual.html
http://playerstage.sourceforge.net/
http://yorkroboticist.blogspot.de/2011/12/installing-playerstage-in-ubuntu-1110.html
http://old.nabble.com/playerstage-users-f4306.html
http://ubuntuforums.org/showthread.php?p=11703672