I've gotten along since deactivating my Facebook account in college (about eight years ago) without being overwhelmingly inconvenienced by its lack. I use a number of Google products but I'm aware of alternatives to all of them (and aggressively prefer the known alternatives to Google Docs, which I hate and will only use when others insist). I'm not that worried.
What's your preferred mechanism for document sharing?
This article let's me know I'm not the only one concerned at the dominance of companies like Google and Facebook. I don't have enough data or information to judge whether my continued use of these services are going to be detrimental to me or the rest of humanity. What I do know is that increasingly I'm feeling like Facebook and Google know too much about me and have too much of my attention. I feel a little bit like a puppet, a little bit strung along. How do others here feel?
It reminds me or is analogous to this. In my opinion the food industry having a monopoly on what we eat, just as Google and Facebook will have a monopoly web content. Is this a risk on society?