SharePoint 2013 Free Training videos from Microsoft !!

Developer-focused training, walkthrough videos, if anyone is interested.

http://msdn.microsoft.com/en-us/office/apps/fp123626.aspx

You may also set up Development environment using Office 365 Developer Site on Cloud and start developing ‘SharePoint 2013 Apps’.

Also http://msdn.microsoft.com/en-us/library/jj163980(v=office.15).aspx

Happy learning SharePoint :-)