The programming and pitching work of the Publishing Hackathon takes place this weekend at Alley NYC, and the organizers report that 406 developers, designers and entrepreneurs have registered to participate. Fifteen sponsors have enrolled as well, and the previously-announced $10,000 grand prize has been joined by a series of smaller cash prizes for specific challenges. The Perseus Books Group is honoring the project that best promotes discovery of non-fiction books; Moon Travel and Rick Steves are picking the project that best promotes the discovery of travel guidebooks. Similarly, Pearson is honoring the project that best uses their Penguin Classics and […]