http://www.ji2.co.jp/forensics/map/index.html

http://conference.hitb.org/hitbsecconf2010dxb/materials/

http://www.ipa.go.jp/security/topics/alert20100422.html

https://www.jpcert.or.jp/pr/2010/pr100002.txt

http://jp.techcrunch.com/archives/20100422facebook-edgerank/