I credit Google AdSense for really opening up the possibility for small blogs to become sources of passive income. Look around the web and you’ll see nearly every blog sport an AdSense ad or two…or three. For most people, it amounts to a bit of pocket change - maybe enough money for a coffee or an occasional indulgence. But soon, the lure of adding more ads from other ad networks overwhelms publishers and soon blogs start to look more like the movie Idiocracy. A while back, Jeff Atwood wrote about how content is becoming dwarfed...