Illuum
Not as happy as you want to be, but don't know why? Illuum is a new web app that lets you stop wondering. It'll help you figure out the whens and whys of your happiness.
How does it work? Well, like a good friend, the first thing Illuum asks is how your day went. You give each day a rating, and then Illuum gets to work. It will analyze your ratings and, for example, tell you if you actually do have a reason to hate Mondays. Or if the winter blues are all in your head.