wheel - 8:16 pm on Nov 21, 2010 (gmt 0)
As Billy noted, it's pull vs. push. When I advertise on or target Google, the people are coming to me looking. It's like being in the yellow pages under Pizza - someone wants a pizza they open up the phone book and go to pizzas and start dialing.Every page view is someone looking for a pizza.
Advertising on facebook, the people aren't there looking for my product. It's like a billboard ad for pizza. 500,000 commuters might look at it and only 10 people might think they want a pizza, now that they've benn given the suggestions. With facebook,you're paying for the 499990 pageviews for people that have no interest in pizza.