Whatever company handles Twitter's business cards should soon be tasked with printing a lot more batches. Twitter's hired two people away from Facebook and Yelp, and these individuals will act as sales execs, establishing teams and presumably "meeting and greeting" lots of potential advertisers. Dan Coughlin, who spent more than a couple years at Facebook, will be responsible for handling the east half of the U.S., and Amanda Levy, who was Yelp's first salesperson,