Yes, "without pushing" is key, but I think there's more to it... Theoretically, google ads are enriching, by noting the existence of an option likely to interes

Yes, "without pushing" is key, but I think there's more to it... Theoretically, google ads are enriching, by noting the existence of an option likely to interest you. The adwords model came from goto.com (then overture.com) which was entirely ads that you searched. Like searchable classifieds I guess.