David Cancel is an entrepreneur who has co-founded several companies, including Compete (acquired by TNS/WPP in 2007), Lookery (acquired by Adknowledge, Inc. in 2008), Ghostery (acquired by Evidon in 2010) and Performable. In June 2011, Performable was acquired by HubSpot where he became the Chief Product Officer. David serves as advisor and director to several startups, including Charles River Ventures, Spark Capital, Next View Ventures, RoughDraft.vc (General Catalyst), DormRoom Fund (FirstRound Capital), and others. David is a frequent blogger at www.davidcancel.com