Real-world Apps

http://blogs.msdn.com/b/richard_dizeregas_blog/archive/2013/03/04/real-world-apps-for-sharepoint-2013-kudos-part-2.aspx

http://sharepointdragons.com/2013/05/22/working-with-connection-strings-in-auto-hosted-apps/
https://channel9.msdn.com/Events/SharePoint-Conference/2012/SPC029
http://toddbaginski.com/blog/msdn-sample-code-and-sharepoint-apps/
https://code.msdn.microsoft.com/SharePoint-2013-Use-65c59e34