I'm going to admit my ignorance here...what is Blit and what is its significance? Most of Richie's contributions were made before I was born, so I did not grow up with many of these things.

http://en.wikipedia.org/wiki/Blit_(computer_terminal) had enough to satisfy my curiosity.

For anyone interested, section 9 of the Unix 8th Edition manual has documentation about the jerq: http://man.cat-v.org/unix_8th/9/

Intro(9) is a good starting point: http://man.cat-v.org/unix_8th/9/intro

It was thanks to dmr that a few years ago the 8th Edition manual and other valuable historical materials escaped the closed vaults of Bell Labs, without his help most of us would not have access to this treasures. This might pale in comparison with his many much greater accomplishments, but it shows how he was always ready to selflessly help until the end, in big and small ways, even when it involved breaking silly corporate rules.

See also the Blit paper: http://doc.cat-v.org/bell_labs/blit/

[This is a repost of my comment in G+]