The Data Digest: Uptake Of Facebook In Asia

In the past few weeks, there have been many conversations about Facebook's privacy changes (and breaches); for example, see this post by my colleague Augie Ray earlier this week. However, what I'm missing in these discussions is how Facebook compares with other social media players worldwide. Although Facebook is the largest social media platform in the Western world, different players lead in other regions. For example, Facebook is struggling to gain ground in Asia Pacific:

With 58% of online adults accessing it, Orkut is the leading social platform in metropolitan India, while 27% of Japanese online adults use mixi; and in South Korea, Cyworld is most popular, attracting 63% of South Korean Internet users. What I'd like to know: how do these networks handle their users’ privacy?