Twitter
Twitter : @DNPP
using mainly
Facebook
Facebook : yusuke.dnpp
using rarely
GitHub
GitHub : dnpp73
Ruby Python JS CSS ShellScript dotfiles etc...
SoundCloud
SoundCloud : dnpp
playing and recording violin
Amazon
Amazon : wishlist
present for me
nicovideo
nicovideo : mylist
once upon a time...
Flickr
Flickr : dnpp73
Skype
Skype : dnpp73
Mail
yusuke [at] dnpp.org