I also serve on the board of The Katleho Network, a non-profit aiding development efforts in South Africa through unique internship programs for young adults.
I used to drive a taxi full-time on the streets of San Francisco and blogged prolifically about my experiences for a year or so.
I advised the Cabulous team to give them a perspective of what it's really like to be a cab driver on the streets of San Francisco as they developed their smartphone cab hailing system.