Videos

1. Developer MSDN :  http://msdn.microsoft.com/en-US/office/apps/fp123626
2. IT MSDN :  http://technet.microsoft.com/en-us/sharepoint/fp123606

Blogs

1. What's New : Andrew : http://www.andrewconnell.com/
2. What's New : Waldek Mastykarz: https://www.nothingbutsharepoint.com
3. What's New: Jan:http://weblogs.asp.net/
4. Developing MSDN: http://msdn.microsoft.com/en-us/library/office/apps/fp179930%28v=office.15%29
5. New for Developers: http://msdn.microsoft.com/en-us/library/sharepoint/jj163091%28v=office.15%29
6. New for IT : http://technet.microsoft.com/en-us/sharepoint/fp142366
7. Request Throttling: http://www.harbar.net/articles/sp2013rm1.aspx

Installation

1. http://www.microsoft.com/en-us/download/details.aspx?id=30384