What controversial dating service did Singapore's Media Development Authority censor?
Internet censorship in Singapore:  Internet services provided by the three major Internet service providers (ISPs) are subject to regulation by the MDA, which requires blocking of a symbolic number of websites containing "mass impact objectionable" material, including Playboy, YouPorn and Ashley Madison. Ashley Madison: Ashley Madison, or The Ashley Madison Agency, is a Canadian online dating service and social networking service marketed to people who are married or in relationships.
Ashley Madison