twitter

http://twitter.com/hirolong

last.fm

http://www.last.fm/user/hirolong

flickr

http://www.flickr.com/photos/hiro-long/

8tracks

http://8tracks.com/hirolong

tumblr

http://hirolong.tumblr.com/

Goodreads

http://www.goodreads.com/user/show/3207011

soundcloud

http://soundcloud.com/hirolong

hatena

http://d.hatena.ne.jp/hirolong/

blip.fm

http://blip.fm/hirolong