Mary Meeker and Lian Wu released the 2013 version of the Internet Trends Report. It's a fascinating read and worth dedicating a few minutes to it to see what you get out of it.
We discussed the quantified self last week so it is interesting to see significant growth over six months for one quantified self tracker, MyFitnessPal.
MyFitnessPal is a tool for logging what you eat and how much activity you perform in an online diary. With an account you have access to forums for discussion, iPhone and Android apps, a personalized diet profile and can be synced up with any diet program you may be on. It's free, connected to Facebook and has a vibrant community.
MyFitnessPal uses your smartphone and a web app to track, so you don't need special equipment to track. It would be interesting to compare the number of MyFitnessPal web entries to the smartphone entries we have in the chart especially since the slide that indicates how users are using their smartphone doesn't report tracking behavior (unless it is grouped under checking time, gaming or alarms).