Cat Matson catches up with Rebekah Campbell, Founder of Aussie start-up Posse, a new social platform that lets you find and share your favourite places at the SXSW 2013 Trade Show. Posse let’s you build your own precinct of great merchants around a street that you name and populate and then share with friends. Aimed squarely at the female user, the startup launched (after a successful beta period) at this week’s South by South West Interactive festival. Enjoy this special video edition of Social Media for Small Business.