What are AdChoices? AdChoices are, basically, Google’s way of tailoring their AdSense ads to better suit you, personally – “to make these ads as relevant and useful as possible for you.” Of course, don’t just take my word for it. And while that is all fine and well, I have yet to find the setting in their Ads Preferences Manager that says “hey, if it is 4:15pm on a Tuesday, maybe don’t show me ads for Madden 12, which is sitting lonely in my PS3 while I am trying to finish up today’s work.” Sigh.
Google ads is how the interactive ebook http://www.math.andyou.com is generating income. It’s available online at no cost. But Google puts an ad on each page that somehow relates to the content of that page.