2011 Foursquare GPS Twitter 
Ari Herzog
JUNE 9, 2011
As long as you have a mobile device with GPS identification and the ability to visit a website, you can play. You are never asked to like the company on Facebook or follow them on Twitter. Are Facebook and Twitter less important in 2011 as they were in 2009? Related articles you may enjoy: Did Twitter Kill Blellow?
Kikolani
NOVEMBER 29, 2010
Follow her @adriarichards on Twitter. Follow her @alexasamuels on Twitter. Follow her @alibrownla on Twitter. Follow her @aliventures on Twitter. Alice is a writer of both fiction and nonfiction, and co-author of the book Let’s Panic About Babies (due out in March 2011). Follow her @finslippy on Twitter.
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