Amazon feels the heat in niche markets.
Jon Fortt speaks with Chegg CEO Dan Rosensweig on disrupting e-commerce and taking on Amazon in education.
Plus -- former Amazon Insider Nadia Shouraboura and Revzilla Founder Anthony Bucci on what it takes to challenge the e-commerce king.
Fortt Knox is a weekly podcast from CNBC anchor Jon Fortt. Previous episodes of the program can be found here.