Bwog’s all about tech-entrepreneurs these days: yesterday we posted on Buzzable (Columbia’s answer to Twitter), and today, it’s CampusPlaybook that’s struck our fancy. 

The all-encompassing campus calendar is the brainchild of Dan Gendler and Daniel Heyman, both CC ’09. It looks clean and professional, and it’s easy to browse and register. Each campus group that signs up receives its own page, plus, users can browse events by type, date, etc. Also, there’s a function that filters specifically for events with free food, because how else are you supposed to decide whether to go or not?

According to the Dans, over 40 groups have signed up already.