Utilitiy: Stikkit

www.stikkit.com

Here is how it is explained from their official Site:

The way notes should work.
Stikkit gives you the digital equivalent of a sticky note: the easiest thing you can grab to jot down an idea or reminder. As you type, Stikkit watches for appointments, to-dos, people, bookmarks and more, magically extracting and organizing the important details. It's like having a personal assistant following along after you.

Involve the people in your life.
Work on a project with a colleague. Bridge the home/work divide with your spouse. Comment on a stikkit to start an ongoing discussion. People are interconnected — your organizer should be too.

Everywhere you are.
Email Stikkit. Keep a blank stikkit at the ready on your desktop. Get reminders on your mobile phone. The best productivity tool is the one that's right there when you need it.