I'm not sure if it makes any difference to you, but you can still opt out of targeted ads with google from your dashboard, you can also delete histories and change privacy settings and find out everything they know and collect and change settings with those and even set up alerts to warn you... really the only thing that changed and you can't opt out of is having all the google services combined and honestly that just makes it easier. Fwiw, I haven't opted out of most things and I don't get any junk mail or spam (I've had much more issues with facebook and yahoo and they don't seem to be anywhere near as easy to even figure out how you can opt out of info sharing, if it's even possible, at least for me).
Well it's true that it may be Yahoo and Facebook. It's hard to tell. It just seems like I'm getting more spam than ever before. And you know every time there is a change in any one of those hosts, it gets on the news and they sound like the world's coming to an end. It's not that I have any real sensitive info online. Heck I don't even do my banking online, mainly because I practically live next door to the bank. I used to shop online a lot, but don't anymore because I am trying not to rack up credit card bills. I did cancel my Google account and I may regret it since I love doing blogs and have been doing so for a number of years since I am an artist (another privacy concern since I don't want anyone else to take credit for my work). I am trying out other blog platforms like Word Press, but haven't found anything I am crazy about yet and they probably have security issues also.