Google AdWords FREE e-book
Google AdWords (along with Yahoo! Search Marketing) is the best contextual advertising service available on the market now. Compared to other PPC engines, this one has a great fraud click protection (certainly not 100% safe, but the competitors have nothing of that level), superb selection of free online tools to make your advertising campaigns as effective as possible and the largest pool of publishers. Google AdWords disadvantage is the price driven up by the cut throat competition (it has nothing to do with Google, of course), but the tendency of PPC prices going down was reported recently.
Brad Callen, the author of KeywordElite and Seo-Elite products, has released a free e-book on Google AdWords. There are a number of similar e-books and manuals out there including the guide from Google. But every good resource or manual contains some new information and fresh ideas that help to discover new perspectives. As it costs nothing, it is worth to download the book and browse it for 5-10 minutes, probably you will spend more time with it.
[tags]google, google adwords, adsense, ppc, yahoo, yahoo search marketing[/tags]