https://www.i-garden.org/blog/2010/02/11/twitter-%e5%be%88%e7%b4%85-%e5%ae%83%e6%98%af%e7%94%9a%e9%ba%bc-google-buzz-%e8%a1%9d%e8%91%97%e8%80%8c%e4%be%86/