The following video is part of our "Motley Fool Conversations" series, in which advisor Joe Magyer and business community connector Matt Trogdon discuss topics across the investing world.

In today's edition of their beginning-investor series, Joe and Matt discuss e-commerce behemoths Amazon.com and eBay. They talk about the differences between the two companies, how they've gotten where they are, and which one would be a better investment today.

Amazon and eBay are two of leaders in the changing face of retail right now. Another area we are focusing on for super-charged growth in retail is emerging markets. The Motley Fool has profiled three of these top companies in our new free report: "3 Companies Set to Dominate the World." The report is free today but won't be forever, so check out your copy today by clicking here. Enjoy, and Fool on!