I saw this when I was doing some research on Amazon (AMZN). They are giving away $5 for overnight shipping. This is very ineresting because normally the online merchants will do free shipping. But Amazon is always innovative.
On serious note, I think Amazon is interesting because people usually think Google is the king of the Internet, while regard Amazon as nothing more than an online retailer. This could change because Amazon has invested heavily on technology (software) in those years. They are providing technology services to other customers (including retailers). Also from my observation, the Amazon Marketplace, where individuals can list items to sell (similar to eBay), is getting momentum. So don’t think Amazon is nothing more than the online “Wal-Mart”…