The Time Zone Converter
The Pomodoro Technique

Marlon Sanders recommends this technique. It’s also a very attractive site. 🙂

Remember The Milk – Help / FAQ / Basics / What format can I enter repeat intervals in?

This is a great way to make recurrence easy… for the user. I’m trying to figure out how to do it as a developer.

HARVEST Time Tracking Tour – Reporting

I like some aspects of Harvest, though it doesn’t meet my specific needs.

Polyphasic Sleep

I think I’m going to be trying this after Thanksgiving.

Syntap Software