So your answer to the question "Why do you assume .. ads?" is "because everything .. ads". How do you not recognize that as begging the question?
And then a few sentences later you say "Google is desperately searching for other sources of revenue", which is utterly inconsistent with "because everything .. ads". Your comment does not make any sense at all.
And then a few sentences later you say "Google is desperately searching for other sources of revenue", which is utterly inconsistent with "because everything .. ads". Your comment does not make any sense at all.