One of the founders of Foursquare is Dennis Crowley. The other is Naveen Selvadurai. I know you didn't ask for both but I wanted to give them to you just in case. I hope this helps! (:
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C.find the email address of someone you know
D.maintain an address book of your contacts
E.organize your emails In folders
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Um im i supposed to read all of that im hell no anyways bye bestie have fun
The equipment that move the fabric forward are called "Hem guides"