Group Challenge/Support Option
I've wholeheartedly recommended FitDay to several people over the years (although, admittedly, I've not been as good about using it myself, but that's MY problem, not FitDay's... but I digress.)
I have a group of friends who all want and need to get healthier and lose a few (or a lot of) pounds. We missed out on signing up for a Boy Scout Leader challenge in our area, so we're going to do our own challenge. I've seen other sites where you can create a group challenge (e.g., weightlosswars.com), and we could probably use one of those and then use FitDay for better tracking, but it would be much nicer if we could do it all in one place.