I just came across an app called Sorumlu Vatandaş (I refuse to link to them). It's a Firefox extension that makes it easier for Turkish internet users to flag a site and notify the Turkish authorities so that site can be examined, and if found inappropriate, access blocked at the ISP level.
I find it deplorable that the internet community in Turkey is working to make censorship easier. I also find the graphic they have chosen to represent the "responsible citizen" ("sorumlu vatandaş" in English) quite funny. 🙂