Kibotzer
Kibotzer (soon to be Beeminder) tracks goals and displays progress. Anything that can have a periodic number put on it can be tracked. For example, commute time, weight, and net worth could all be tracked.
Kibotzer differentiates itself with its data visualization, which utilizes smoothing to display better trends over time. Kibotzer also displays differently colored areas: yellow (brick road) shows your goal trendline, turquoise (swath) shows a true trend on a wide band, purple (line) is an exponentially weighted moving average, pink (dots) show an optimistic view of your progress and black (dots) show actual reported data.