Just between Facebook and Google, a world of data about us is increasingly available online to pretty much anyone motivated enough to seek it out. If you communicate and spend time on the Internet, you have little choice but to accept a much lower level of privacy than you'd have otherwise--Do Not Track and other recent measures notwithstanding.
I've already written about a few privacy-minded technologies that aim to help, including the DuckDuckGo search engine, the GNU Free Call alternative to Skype, the BitBox browser, and the Lightweight Portable Security (LPS) Linux distribution.
Recently, however, a reader alerted me to a new and highly secure social networking option. It's called RetroShare, and it basically lets you set up a completely private network for communicating and sharing with those you trust.
'Friend to Friend' Networking