Sam Chaudhary – https://twitter.com/samchaudhary_ – is the cofounder and CEO of ClassDojo – https://www.classdojo.com/. They’ve raised $30M and have 30 employees.
Karen Lien – https://twitter.com/karenlien03 – is an Edtech Principal here at YC.
The YC podcast is hosted by Craig Cannon – https://twitter.com/craigcannon