ftp://kernel.org/pub/software/scm/git/
http://www.atmarkit.co.jp/flinux/rensai/watch2005/watch05a.html
http://www.netfort.gr.jp/~dancer/column/200504-git.html.ja
http://japan.zdnet.com/news/devsys/story/0,2000052522,20083011,00.htm