What’s New in SharePoint 2013 Preview? August 2012 Perth SharePoint
http://www.youtube.com/watch?v=yD6ebRtjn5M
SharePoint 2013: What’s New? What’s Gone? What’s Next?
http://www.rackspace.com/blog/sharepoint-2013-whats-new-whats-gone-whats-next/
Capabilities and features in SharePoint 2013
http://technet.microsoft.com/en-us/sharepoint/fp142374.aspx
What’s new for developers in SharePoint 2013
http://msdn.microsoft.com/en-us/library/jj163091.aspx
9 New Features in SharePoint 2013 Preview: “A cheat sheet for the rest of us”
http://www.sharepointpromag.com/article/sharepoint/sharepoint-2013-features-144003