Column: Google shakes it up with Chromecast

Here’s what all the noise was about Monday morning. At Netflix headquarters, people were cheering. At the big cable companies, they were shaking in their boots. At Amazon, one executive might have been trying to explain what went wrong.

At Google, they were just quietly smiling.

It was all about a thumb-size, $35 gadget called Google Chromecast that came out last week with little fanfare, almost as an afterthought to the announcement of a new version of its Nexus 7 tablet.

It’s sold out already, with more stock due in three or four weeks.