Foursquare had 381,576,300 individual user check-ins, 6 million users and a 3400% growth in 2010 alone. So it's safe to say that location-based services are no longer a fad. Just a few weeks ago ...

In response on to a question on Quora yesterday afternoon about why the Facebook Places logo looks like it contains a “four” in a “square,” Facebook Design Strategy lead Aaron Sittig ...