New Features
http://www.sharepointpromag.com/article/sharepoint-2013/sharepoint-2013-improved-features-cheat-sheet-145004
Why SharePoint 2013? Should you move straight from 2007? Yes!
http://www.sharepointpromag.com/blog/dan-holmes-viewpoint-on-sharepoint-blog-24/sharepoint-2013/migrating-sharepoint-2007-part-2-144913
Licensing in SharePoint 2013
http://www.degdigital.com/blog/big-changes-in-sharepoint-2013-licensing-for-portal-clients/
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