Get OS X System Info from the Command Line – teczd
Handy article that documents the various ways of getting a Mac's system information inside a terminal.
From what I've been able to see on the Net, this is the tweet that first suggested using a hash and a symbolic name to group together tweets by subject.
I can remember, back in the day, using this and an external website to then search particular tags on Twitter. Sadly I forget the name of the website.
An article exploring, in some part, the idea that science works as well as it does because failure is a feature and is (or should be) embraced.
I wish software development would do this more too.