Daniel Debow is a co-founder of Workbrain and Rypple. He has a law degree from the University of Toronto and was previously a co-CEO and co-founder of Rypple. The document discusses his background and experience founding two startups, Workbrain and Rypple. It provides details on Workbrain's success, selling for $227 million in 2007, and the founding of Rypple to address problems with performance reviews. The document concludes with semi-useful advice Daniel has learned from his startup experiences.