True! Adsense works only if visitors are coming from google (in search mode... they end clicking because there are a lot of chances they didn't found what the w

True! Adsense works only if visitors are coming from google (in search mode... they end clicking because there are a lot of chances they didn't found what the were looking for so - adsense to continue navigation), or if you have a site with a user base of average people with IE6 and Windows XP without any kind of navigation skills, those will click. Adsense is not a business model for 70% of the web startups out there. Google will instead pay you a lot if you are a spammer. Copy the wikipedia DB or other public available information, mix it together, get few backlinks, and put adsense in a prominent position, and you are set. You will earn 5$ for 1000 pageviews more or less that's exactly ok given that you have millions of pages generated in 1 day of work. With few domains and different free contents around you can get a living in few months. This was my Ycombinator, the source of money I used to take me alive while developing the code for my startup. Google will hardly block spam from the SERP.