A new generation of self-trackers attended the first annual Quantified Self conference. The objective: collect as much data as possible about themselves to make informed decisions regarding health, productivity, and happiness.

The self-tracking movement uses already uses wireless sensing devices and smart phones to track food intake and fitness, but a new generation of apps also tracks mood, migraines, and other factors.

There are signs that self-tracking is catching the interest of mainstream healthcare. Humana, a major insurer, had several attendees, as did the Robert Wood Johnson Foundation.

Here is an online guide to self-tracking tools provided by the Quantified Self organization.