A Comprehensive Book on Internet Marketing

Yes. I wanted to do an Optimization on couple of power sites, what is now popularly known as SEO. Did lot of search. There are people specializing in different areas. Everyday the internet domain is expanding like anything, no one seems to know what is going to fetch the best ROI for their efforts. Is it better to do a complete site overhaul to match Google, MSN and Yahoo or does it make sense to spend the whole money on PPCs, banner ads or in e mail campaign. Even before thinking of all that a consultant/company need to get a comprehensive picture of what are the tools available in the internet based marketing/advertisement domain. Weigh the pros and cons and then decide. Are their any scientific matrix or tools available. I don't think so.
There are lot of resources on the net, once you zero in on your approach or technique, no doubt about that.
Now lets look at the books scenario. A search on Amazone for the combinations of Search, SEO , Internet and marketing yields quite a lot. Mostly specializing in one technique.
So here I'm planning for another one. The book should be a mixture of tools, techniques, marketing principles.
Lets see what happens.