I'm right with you on this one. I personally think the old 'don't be evil' motto is looking very tatty these days. That was always going to happen, I guess, but sometimes I find it very hard to find a difference between activities of companies Google used to speak out against, and modern Google.
Google used to be the thing when it was a bare bones, super fast and accurate search engine. Nowadays trying to find an organic search result is getting very early-yahoo like. Just take an objective look at the search results for an even mildly-popular term and you'll find it buried under layers of ads and Google verticals like YouTube and others.
I'm envious of some of my friends who just skipped the entire social networking thing. They are gloriously offline if you try and find them. I got into social networking while working at a social networking startup, and now I don't really get much value from it anymore. But all my 'stuff' is out there, so closing the accounts now is somewhat superfluous and pointless. I think Twitter is about the only thing to use - you get to communicate but you really do get to control how much people get to know about you.
As for the comments about needing to be 'out there' as an entrepreneur - I've spent a token amount of SEO effort to get myself on front page search engine results - if people want to find me, they will. But the endless linked-in requests from people you've spoken too once via email - it's all getting very tedious.