I admit it... I am a map and data junkie... We live in a super connected world that constantly tracks and analyzes all myriad of things in our lives. Some of this data becomes quite interesting when overlayed on a map.
The above map image by Data Underload over at Flowing Data, is a great example of how people's preferences for certain areas becomes clear when you overlay the habits of many runners over time. As is always the case, where to run in Miami is also great for showing places to get out and bike, walk, LIVE, etc. Downtown Miami, Key Biscayne, Coconut Grove and Coral Gables feature prominently and are all great places to live, work, play and raise a family.
Do beware as Flowing Data points out that you do have ghost data such persons who apparently seem to be able to walk on water. Most likely GPS coordinate snafu of someone paddle boarding, kayaking or some such thing over the water.
There are also maps of a few more cities to check out at their website.