Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Better book exists elsewhere

I agree with Peggy, this book doesn't have much meat even just for surveying the internet stocks landscape. "100 Best Internet Stocks to Own" by Greg Kyle does a much better job in this respect by providing more information on each company's background, major turn points of stock prices in their history, analysis of business challenges as well as opportunities. More informative and more insightful. Put these two books side by side, you'll notice the difference in no time.