Found: An interesting article from Gladden J. Pappin on Liberty, Technology, and the Advent of Social Networking. It's a bit tl;dr, but I've read through once, and hope to sit with it a little longer sometime.
The article (and many like it) makes me think a bit about the theme of personhood on the Internet, and how our use and overuse of social media, blogging, etc. in building our own self-image is something about which we must always be cautious.
I recently watched the Star Trek TNG Episodes 'Booby Trap' and 'Galaxy's Child', and while I'm no supporter of the strange philosophies that guide Star Trek morality/ethics, I wonder if we are becoming like Geordi LaForge, who fell in love with a projected image of a person on the holodeck.
One of the keys to using social media effectively is to keep a proper separation between one's true self-image and the image one projects on the 'holodeck' of the Internet (and make sure you know that others are not defined by tweets and avatars).