A little Linkcollection:
Thanks to the orginal writers:
http://technet.microsoft.com/en-us/exchange/bb219569.aspx
http://technet.microsoft.com/en-us/exchange/fp179701
http://technet.microsoft.com/en-us/library/jj150540%28EXCHG.150%29.aspx#BKMK_Share
http://redmondmag.com/Articles/2012/07/18/Microsoft-Releases-Previews-of-Office-2013.aspx?Page=2
http://emailmigrations.com/exchange-2013-preview-test-drive-preparation
http://tech2guys.com/2012/09/12/installing-exchange-server-2013-preview/
http://www.howexchangeworks.com/
http://exchangeserverpro.com/how-to-install-exchange-server-2013 from the exchange guru and mvp
thanks to all active writers