Overview of cloud-hosted apps — http://msdn.microsoft.com/en-us/library/fp179930(v=office.15).aspx
Event receivers — http://msdn.microsoft.com/en-us/library/jj220051.aspx
REST services for SharePoint 2013 — http://msdn.microsoft.com/en-us/library/fp142386.aspx
Overview of master pages for SharePoint 2013 — http://msdn.microsoft.com/en-us/library/jj191506(v=office.15)
3.18.220.243