amp;ldquo;Weamp;rsquo;re weeding out the stoners,amp;rdquo; said Olivia Mannix, the 25-year-old co-founder of a start-up called Cannabrand, an advertising agency devoted exclusively to marketing marijuana. amp;ldquo;We want to show the world that normal, professional, successful people consume cannabis.amp;rdquo; Colorado became the first of two states to legalize recreational marijuana sales this year, paving the way for millions in tax revenue, and a new kind of consumer. That is why, on a recent weekend, Ms. Mannix and her co-founder, Jennifer DeFalco, were camped out in Aspen for a pot-themed (and pot-induced) brainstorming session. - The New York Times