Uber and Lyft mastered the technology to make the on-demand car experience simple and nearly immediate. Traditional black car operators are trying to do the same. But their world is a complicated patchwork of platforms, patents and partnerships. No initiative has unified the industry, and more pop up all the time. Sorting out on-demand capabilities means aggregating supply across providers...

David Jonas in 2006 co-founded business media firm ProMedia.travel after ten years as a journalist with Business Travel News. David rejoined BTN in 2010 as executive editor when its parent company acquired ProMedia, and in 2014 co-created The Company Dime. David has a bachelor's degree in communications from Cornell University.