URLs

• https://www.pixiv.net/users/509585
• https://www.pixiv.net/stacc/siguma_y
• https://twitter.com/co_sgm
• https://twitter.com/intent/user?user_id=1910158722
• https://sketch.pixiv.net/@siguma_y
• https://twitter.com/sgm_yama
• http://twitpic.com/photos/sgm_yama
• http://yfrog.com/user/sgm_yama/photos