URLs

• https://www.pixiv.net/users/1471767
• https://www.pixiv.net/stacc/aoyama_sunao
• https://twitter.com/aoyama_sunao
• https://twitter.com/intent/user?user_id=211580552
• http://blog.livedoor.jp/aoyama_sunao/
• http://twitpic.com/photos/aoyama_sunao