Dan is an active entrepreneur with several patents and technology licenses. He co-founded Netbot Incorporated, creator of Jango Shopping Search (acquired by Excite), AdRelevance, a monitoring service for internet advertising (acquired by Nielsen NetRatings), and data integration company Nimble Technology (acquired by Actuate). Dan is a Venture Partner at the Madrona Venture Group and on the Scientific Advisory Boards of the Allen Institute for Artificial Intelligence and the Madrona Venture Group.
Dan has taught many courses, including graduate classes on Artificial Intelligence, Extracting, Managing & Personalizing Web Information and Intelligent User Interfaces, and undergraduate classes on Artificial Intelligence, Advanced Internet Systems, and Machine Learning. In 2012, Dan co-organized a workshop on Crowdsourcing Personalized Online Education. During sabbaticals Dan was a visiting professor at Griffith University in Brisbane, Australia and visited the VIBE group at Microsoft Research.