Interesting list of companies, another company I've seen is VitalJuice (city based, healthy lifestyle newsletter)
"In 2006 they left their jobs and started a wellness consulting outfit, and for three months, worked with Revolution Health, a Steve Case-backed company. In May 2007 they went out on their own, tapping their own funds to create Vital Juice. In October 2008 they raised $1 million in Series A funding from Bob Pittman's Pilot Group"