These Points are Good, but I don't think Google is in Danger, !st Condition is Some one purchase Google, Than no one Come to search on Google, Whole world will be say Good by Google, There are many factors I can descibe, 1st one Custom search box of Google, There are various site who use this api to search into their website it will stopped, additionally People will use yahoo, It will also paid people don't to search any thing, We are human we have a mind we can make find any with our mind, also Excel is 2nd way which can work like search engine.
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