http://jp.techcrunch.com/archives/20100324baidu-google/
http://itpro.nikkeibp.co.jp/article/NEWS/20100217/344654/
http://journal.mycom.co.jp/articles/2010/01/22/google/index.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+haishin%2Frss%2Fnet+%28%E3%83%9E%E3%82%A4%E3%82%B3%E3%83%9F%E3%82%B8%E3%83%A3%E3%83%BC%E3%83%8A%E3%83%AB+%E3%83%8D%E3%83%83%E3%83%88%29&utm_content=livedoor
http://www.lifehacker.jp/2010/01/100106google6.html
