#10 I am not so sure about. 15% is PPC. 85% Organic Click Traffic. Sure there is room and growth, but I think the numbers are misleading. I think what isn't

#10 I am not so sure about. 15% is PPC. 85% Organic Click Traffic. Sure there is room and growth, but I think the numbers are misleading. I think what isn't said is: Not all traffic is created equal. What do you think the ratio of commercial vs non-commercial searches is? PPC spend isn't only on searches. It's on AdSense and domain parking. Those account for ~33% of Google's PPC. PPC gives immediate and quantifiable results. SEO is somewhat blackbox and the results aren't guaranteed or instant.