What is it: Four Square is an app that tracks where you are and allows you to notify friends (friends that care apparently). Businesses are latching on by being able to see who has “four squared” them and offering those people discounts and the like.
Google has offered a similar GPS friend-tracker, called Latitude.
Why is it cool: In as much as Four Square has a ready-made revenue link via business involvement, it will be fascinating to see how this new “enhanced reality” technology will stick in our lives.
Where to find it: Main article: here! FourSquare: here! Google Latitude: here!
Submitted by: Scott Taylor and John Cucka
Tags: communications, lifestyle, technology, web 2.0