When Wal-Mart Stores, Inc. (NYSE: WMT) announced the purchase of online retailer Jet.com late last year, it announced to the world that it was no longer going to sit by and let Amazon.com, Inc. (NASDAQ: AMZN) dominate the world of e-commerce. What followed was a whirlwind of smaller online acquisitions, including men’s clothier Bonobos, woman’s fashion purveyor Modcloth, and outdoor retailer Moosejaw.