Internet censorship, Internet free? This is a good representation of internet censorship and the motives behind them that is a good visual presentation
Uganda, at the insistence of its national police commissioner, has sent its three largest ISPs a memo requesting they begin blocking what they called "Tweeter" (presumably Twitter) and Facebook, in order to "eliminate the connection and sharing of information that incites the public."
"How American-Made Tech Helped Middle Eastern Governments Censor the Internet"
A new Harvard University study details how American and Canadian companies provided Internet filtering and monitoring software to the Iranian government, Mubarak's Egypt and other repressive states. It's still going on.