Re: G+
Well Google want you to use Chrome, trust your documents, email and life to Google+ and use them for search too.
That is pretty much most of your online life... ALL your online life if the site you visit also use Google Ads since they can track/trace you there too.
So yes I'm in IT but sorry, I'm not going anywhere near personally. Not because I have any privacy issues (though privacy is nice) but because I don't want to give all that information away for free. What I'll do if/when they require a G+ account to search I'm not sure yet.
For the IT hardcore rather than trendy there's Diaspora which has excellent privacy but it's such an obscure/bizarre setup and frankly such a daft name that I've little chance of recruiting my friends/contacts to it.... shame really for the sake of a name !