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On Wednesday, Facebook filed for its IPO. We asked our Facebook and Twitter communities if they would buy shares of Facebook and why (or why not). Here's what they had to say, including tweets from co-founder Tom Gardner, Inside Value advisor Joe Magyer, and macroeconomic columnist Morgan Housel.  

Katrina Chan doesn’t own shares in any of the companies listed. You can follow her on Twitter,  @KatrinaChan. The Motley Fool owns shares of Google. Motley Fool newsletter services have recommended buying shares of Google. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.