Recommended Books about Software as a Service Web Architecture / Best Practices
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There seems to be an emerging software architecture where there is some service hosted on a web server which has multiple access points either via a web browser or mobile app. An example would be Facebook or CNN.com. Some may refer it as the "cloud" or "Software as a Service." Having only done low level embedded C++, this area is unfamiliar to me. I want to the best practices of this pattern enough to try it. I looked at [Web Architectures](http://www.amazon.com/Web-2-0-Architectures-Entrepreneurs-Information/dp/0596514433) and [Designing Web Interfaces](http://www.amazon.com/Designing-Web-Interfaces-Principles-Interactions/dp/0596516258) but I'm not sure if they are exactly what I'm looking for. Which would books would you recommend?

