Yammer is a service designed to help co-workers keep each other up-to-date on their work progress by answering the question "What are you working on?"

Yammer Time is a Firefox extension that reminds you to use Yammer. By default, every 4 hours between 9AM and 5PM on weekdays, it will pop up this obtrusive prompt:

Just tell it what you're working on (you are working, aren't you?), and it will go away for the next 4 hours. You can change how often it asks (and on what days) in the Preferences dialog. You can also manually update Yammer by clicking on the Yammer Time toolbar button:

The latest version of Yammer Time is version 1.0.1.

The Yammer Time is compatible with Firefox 3.0+ and Flock 2.0+. If you're having trouble using the extension, e-mail me at cfinke@gmail.com or leave a comment below.