@blowdart:

http://www.amazon.com/Barry-Dorrans/e/B004L59WF4/

I won't be reading it unfortunately.

I don't see what it has to do with LinkedIn either. LinkedIn doesn't use .NET and therefore, in my opinion, really has nothing to do with ASP.

http://www.slideshare.net/linkedin/linkedins-communication-architecture

If you look at the response header, you can see it uses Apache Coyote.