Back in the 1990s, people seemed to constantly talk about "Internet time." Referring to the sense that a year online, seemed like forever - especially given most people had spent very little time online, the Web was expanding at a rate essentially never seen before, there was little to compare it to historically, it all seemed to change a lot in one year. It still sometimes feels like the Internet time effect, when you refer to the brief era of Groupon's boom - it seems like it was a decade or more ago, when it was just three to four years.