Keith Smith, co-founder and chief executive officer of Zango Inc., an online advertising and media company. http://www.washingtonceo.com/index.php?id=90&tx_ttnews%5Btt_news%5D=783&tx_ttnews%5BbackPid%5D=146&cHash=a729775d91 "Every company runs into obstacles. My company, Zango Inc.,...