URLs

• https://www.pixiv.net/users/1500994
• https://www.pixiv.net/stacc/yu_zu_ki0313
• https://twitter.com/itsuf
• https://twitter.com/itsuki0313
• https://twitter.com/intent/user?user_id=455528711
• https://twitter.com/intent/user?user_id=961079563
• http://www.nicovideo.jp/mylist/20708393
• http://twitpic.com/photos/itsuki0313