Unified Privacy Policy
The point I started to eliminate Google was when they unified their privacy policy, which lets them match your web visits (from Google Analytics and Google adverts) to your searches, to your Android device, to your location, to your identity, to the YouTube videos you watch, even to the telephone number you give in case you lose the account login*
ALSO BE CAREFUL IF YOU USE CLOUD PRINT.
Those documents you print go through Google servers and hence through NSA data captures. If you print commercially sensitive data using Cloud print, business emails, identity document copies, political campaign leaflets, medical or financial documents, any customer data, or any other document of interest to a spying agency, then you are exposing that data to the NSA by using Cloud Print.
To get an idea of how unique your browser is, visit Panopticlick (link below), my browser is unique to 1 in 3.5 million, together with the IP address, it's totally unique. Google has this data now and the policy change gave them permission to make that link between all their sites.
https://panopticlick.eff.org/
For me, Gmail is gone, replaced by Yandex. Google has gone, replaced by DuckDuckgo (and waiting for a non-US search alternative). Android will be gone soon, replaced by a generic (non Google'ified) Android generic.
I am sympathetic a little for the NSA thing, but Google assembled this data for themselves, so of course others would grab it. They should not have assembled it, they should not have been allowed to assemble it.
* [Added] Oh I haven't even got the association data yet. By analyzing your location metadata, who you associate with, where you shop, political affiliations, who you sleep with and so on. NSA of course grabs that same data.