Internet censorship, Internet free? This is a good representation of internet censorship and the motives behind them that is a good visual presentation
"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.
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."