Approximately 170 hackers have signed up so far to take part in the Perseus Books Group-sponsored Publishing Hackathon, an event designed to put together teams to develop new approaches to book discoverability. Hackers can sign up to participate in the event up until the night before the hackathon begins on May 18. Judges will pick the best three to five projects and those projects will be voted on at BEA on May 31 after demonstrations that start at 3 p.m.

Among the new judges that have been added are Randi Zuckerberg, founder of Zuckerberg Media, Alexis Ohanian, cofounder Reddit, Ray Velez, CTO of Razorfish, and Miwa Messer, director of B&N’s Discover Great New Writers program. Companies helping to put on the event include Librify, which located AlleyNYC, the site of the hackathon before it moves to the Javits Center, and which also helped identify judges