Tradehill’s second attempt at making money off Bitcoin: Prime (exclusive) March 18, 2013 8:00 AM Christina Farr Christina Farr Twitter Profile Recent Stories: Cure.org helps you save kids across the world with your smartphone Where robots fail: Why education can’t just be digital ‘Excel killer’ Tableau Software ups its IPO price to $31 The Bitcoin exchange has recovered from bankruptcy and is ready for a relaunch.