Overview – http://www.iis.net/overview

Feature Training – http://learn.iis.net/ 

IIS 7 Operations Guide – http://technet.microsoft.com/en-us/library/cc732976(WS.10).aspx

Docs – http://technet.microsoft.com/en-us/library/cc753433(WS.10).aspx

Accessing Online Help – http://technet.microsoft.com/en-us/library/cc725788(WS.10).aspx

ASP.Net & PHP Support   http://www.iis.net/overview/ASP.NETandPHPSupport

Building and Running ASP.NET Applications – http://learn.iis.net/page.aspx/23/building-and-running-aspnet-applications/

Planning Your IIS 7 Architecture  http://learn.iis.net/page.aspx/38/planning-your-iis-7-architecture/

IIS7.x configuration reference is here http://www.iis.net/ConfigReference

Achieving High Availability and Scalability – ARR and NLB – http://learn.iis.net/page.aspx/511/achieving-high-availability-and-scalability—arr-and-nlb/

 

Thanks to Zoher Bharmal (Support Engineer IIS/ASP.NET) for this list.