It's always scary when a sumo sized company like Facebook enters your space. However, there are two things that this article doesn't consider: 1) People like

It's always scary when a sumo sized company like Facebook enters your space. However, there are two things that this article doesn't consider: 1) People like new, shiny and cool. Facebook won't be new, shiny or cool forever. Sure, neither will Foursquare or Gowalla, but you get the idea. Out sumo the sumo and you'll win the next round. 2) Foursqure and Gowalla are interesting social networks, but they're social networks in the loosest form of the term. First and foremost, their functionality is based around engagement and motivation. Users "get something" for "doing something". This was somewhat revolutionary on the web and we haven't even scratched the surface of this.