Time Magazine recently published a list of the “Top 50 Worst Inventions” and the list included both mega-hits: Zynga’s online game Farmville and the location-based social application Foursquare.

The buzz for both these web applications has been extraordinary. Foursquare for instance has almost 1 million checkins per day. Farmville now has 30 million virtual farms run by 2 million users in the U.S.