Crowdsourcing a Better Gmail discusses how users can customize their Gmail experience through user scripts and APIs. It describes several user scripts that add features like inbox counts, attachment reminders, and customizable keyboard shortcuts. It also notes that customizing Gmail through individual scripts can become time-consuming. Google has released a Greasemonkey API to make Gmail extensions easier to create and maintain across different locales and devices. The article encourages users to build extensions that improve the web experience for all.