Four Square

Quintessential childhood playground game is so hot in Silicon Valley right now.

When the Web 2.0 bubble bursts, everyone will be wishing they were in fourth grade again.

Editorial note: Whoa! You’ve found a super-old post here on BuzzFeed, from an earlier era of the site. It doesn’t really represent where we are anymore, and may in fact be totally broken, but we’re leaving it up as a part of our early history.

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