Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Best AJAX coverage in the market

So far, this is the best coverage I've read on AJAX programming after buying two AJAX books. Although I am not a big fan of scripting and client-only rich applications I found this book does cover good basics which are critical to writing AJAXs. The code examples helps get going with learning/hacking AJAX concepts and some advanced Javascripting. I am still concerned about the industry acceptance of AJAX to use AJAX in my applications.