Pinboard dot com is run by a hilarious, crotchety Linux guy who has been around forever. He did me a huge favor by not selling that domain despite great temptation.

Looks like he recently moved to pinboard.jp

pinboard.com is currently not responding, and was last cached on 29 Jul at 1:47 GMT (roughly 5 hours ago).

It's working here (redirecting to .jp)

www.pinboard.com redirects to a transition site.