If you are feeling squeamish about that sort of tracking, too bad. You can’t opt out of this tracking if you want to use Google’s products. As Christopher Brook noted in a Threat Post blog, you can always take your information “elsewhere.”
Google argues that the information consolidation will help it serve users better by, for example, sending you “more relevant ads.”
“For example, it’s January, but maybe you’re not a gym person, so fitness ads aren’t that useful to you. We can provide reminders that you’re going to be late for a meeting based on your location, your calendar and an understanding of what the traffic is like that day. Or ensure that our spelling suggestions, even for your friends’ names, are accurate because you’ve typed them before. People still have to do way too much heavy lifting, and we want to do a better job of helping them out”, Whitten writes.
Gizmodo’s Mat Honan, for one, is none too happy with the changes: “Google's privacy policies have been shifting towards sharing data across services, and away from data compartmentalization for some time. It's been consistently de-anonymizing you, initially requiring real names with Plus, for example, and then tying your Plus account to your Gmail account. But this is an entirely new level of sharing. And given all of the negative feedback that it had with Google+ privacy issues, it's especially troubling that it would take actions that further erode users' privacy.”
And Lisa Vaas wrote on Sophos' Naked Security blog: "Did we really think Google was purely interested in its customers' well-being, even after the company was fined $500 million for allowing Canadian pharmacies to use its Adwords system to market pharmaceuticals to American consumers?"