eBay coasting on its monopoly?

Jeff Chan: “Unlike Amazon, eBay is not an innovative company. Amazon has constantly improved the shopping experience by introducing useful features like collaborative filtering, personalization, book browsing, and web services. eBay, on the other hand, appears to be coasting on its monopoly position, and not too smoothly either. The reputation system is not robust. There is no scaling of ratings by dollar amount of transactions nor any use of network flow algorithms, or even a two-level system that Amazon uses to rate reviews.”