Exchange and Outlook Development Help

I've assembled lists of sites where you can look for information and help on APIs dealing with developing applications against Exchange and Outlook.

Messaging Development training:

Exchange Server development

Welcome to the Outlook 2013 developer reference

Channel 9
This is Microsoft's video based training site.  It covers a broad range of developer topics including messaging APIs.

Developer Support Team blogs:

Developer Support Messaging Team

EMEA Developer Support for Messaging Team Blog

Exchange product team blogs:

Exchange Dev Blog

Exchange Team Blog

Outlook development:

Office Developer Documentation

Office client development

Microsoft MVPs:

Glen's Exchange Dev Blog
This is one of my favorite sites for Powershell scripts.

Glen Scale's Exchagne Column



EWS discussion on stackoverflow

Exchange development forums

Getting Support:

Get support - Exchange

Support - All products