Advertising run amok?

Our friends at Google have revolutionised the world of advertising with their technology for displaying ads based on the content of the web page.

But this seems to me to have taken the principle to the point where it has become almost a parody of itself. I use Google's new Gmail service and I love it. But I was flabbergasted to find that when I open the spam folder it displays links to recipes containing spam!

I'm not sure whether this is cute or just plain ridiculous...and no I haven't tried any of the recipes!