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Google workers complain bosses are 'inept' and 'glassy-eyed'
(www.sfgate.com)
This is a most excellent place for technology news and articles.
In my opinion, it was when anti-trust laws did not trigger upon Google acquiring YouTube because Google Video couldn't compete. That meant it was open season on start-ups that otherwise might have grown to kill Google or other big tech companies like Apple, Facebook and Microsoft.
Oh yeah, I even forgot Google Video used to be a thing.
See List of mergers and acquisitions by Alphabet for the graveyard list. Sorting by Price helps. Some other notable companies that Google acquired rather than compete with: