The answer is yes. Anyone with an internet marketing strategy already knows this, but I am still surprised at how often I asked this question, and about how skeptical some people are.
Here is a new study, and cute video presentation of the results. Yes, I know its made by Google – but I think the general points not arguable.
Google and the research group Keller Fay collaborated to study the effects of the Internet, Search Engines and Social Media Marketing on word of mouth conversations .