Linked List: March 19, 2017

Daring Fireball Sponsorship Openings 

Down to just four open spots between now and the end of May — but that includes this week and next. We’ve had some great first-time sponsors recently. If you’ve got a cool product or service to promote, get in touch.

Uber President Jeff Jones Is Quitting, Citing Differences Over ‘Beliefs and Approach to Leadership’ 

Kara Swisher and Johana Bhuiyan, reporting for Recode:

Jeff Jones, the president of Uber, is quitting the car-hailing company after less than a year. The move by the No. 2 exec, said sources, is directly related to the multiple controversies there, including explosive charges of sexism and sexual harassment.

So was Uber’s toxic culture a surprise to Jones? Or was it even worse than what he was braced for?

Chuck Berry Dies at 90 

Great clip from 1987’s Hail! Hail! Rock ’n’ Roll, with Chuck Berry teaching Keith Richards how to properly play the opening licks of “Carol”. Perfect.

See also: This letter from Carl Sagan and NASA creative director Ann Druyan to Berry in 1986.