By John Gruber
Obsidian: the private and flexible writing app that adapts to the way you think. Sign up by Jan 1st for a special offer.
Over eight million businesses around the world use MailChimp for email newsletters, A/B testing, and marketing automation.
This RSS sponsorship ran on Thursday, 28 May 2015.
Copyright © 2002–2023 The Daring Fireball Company LLC.