A list is a set of discrete items of information collected and set forth in some format for utility, entertainment, or other purposes. A list may be memorialized in any number of ways, including existing only in the mind of the list-maker, but lists are frequently written down on paper, or maintained electronically. Although lists may be made for entertainment, lists are "most frequently a tool".
https://github.com/woop/awesome-quantified-self
:bar_chart: Websites, Resources, Devices, Wearables, Applications, and Platforms for Self Tracking