"Readability, a project of the Arc90 Lab, is a bookmarklet-based browser tool that reformats a Web page and presents the page’s text content in a plain, easy-to-read format. "

Microcontent needs to be pearls of clarity: you get 40-60 characters to explain your macrocontent. Unless the title or subject make it absolutely clear what the page or email is about, users will never open it.