http://www.zip.com.au/~akpm/linux/ext3/index.html
ftp://ftp.linux.org.uk/pub/linux/sct/fs/jfs/
http://www.sukisuki.org/linux/
http://slashdot.jp/article.pl?sid=01/11/17/0941225&mode=nested
http://itpro.nikkeibp.co.jp/article/NEWS/20070313/264838/