Happy Hacking Keyboard
Used by 6 peopleen.wikipedia.org ↗

“By the way, Kenneth Reitz uses Happy Hacking Keyboard PRO, another awesome keyboard with replacement key switches made by the same manufacturer.”
Sadayuki Furuhashi Interview, Hacker (MessagePack, Fluentd) · via Uses This 
“My primary interface is a white Happy Hacking Professional 2 keyboard with blank key caps.”
Ethan Schoonover Interview, Designer, developer (Kinkless, Solarized) · via Uses This 
“On the road, I sometimes use a Happy Hacking keyboard to allow for better posture.”
Benjamin Mako Hill Interview, Social scientist, free software hacker (MIT) · via Uses This 
“My keyboard is a Happy Hacking Keyboard Professional 2.”
Keita Takahashi Interview, Game designer (Katamari Damacy) · via Uses This