I've written in defense of Facebook before, and Alexis Madrigal does it better than me:
...The real struggle is with ourselves to use Facebook well … You get to determine your level of investment in the digital world around you. You get to choose the people you listen and talk to. You have control over your data. You get to define who you are, no matter what your Facebook profile says. All that is not lost unless we choose to lose it.
I think this is obvious, and if you don't get it, may nature select against your genes. The one concern I do have with Facebook is that it is so much better than anything else at allowing users to use their own local knowledge to coordinate and manage information that it will soon come to monopolize much of the activity on the Internet (just like Microsoft with the operating system market in the 1990s) - future blogging will be solely on Facebook, email will be taken over by Facebook (perhaps as soon as tomorrow), games developed will be all for Facebook platforms a la Farmville; essentially, we could be seeing the genesis of something far more of a monopoly in any meaningful sense of the word than Microsoft ever was
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