> whether this tends to the good / bad / neutral will take a much longer time to sus out - and it'll certainly vary on the perspective of the person looking backThe only truthful answer is "all of the above".
But, I suspect Google's fate is the same as IBM.
It fades into obsolesce within a generation. It's already happening. The tell-tale sign is that its search product is becoming absolutely useless as every search category follows the same pattern as the recipe problem (have you googled error messages recently? If even stack trace search results are dominated by useless ad spam, you're done...). It used to be that search was the sacred cow of Google. You could inject a few very obvious and low-screen-real-estate ads into search, but that was it. All sorts of shady shit happened in every other product category, the company shut down services left and right, etc. etc. But search -- search was sacred. Take a reasonable profit, and no more. That mentality is apparently gone.
Our children will think of Google like we think of IBM. They'll remember a company that invented the search engine, as well as the "just save everything and then search for stuff" mode of work. The core innovation was an enormously useful and a powerful augmentation to human intelligence, but in the end the innovation factory was burned to the ground by smart people yielding spreadsheets.