Zappos.com is an online shoe and clothing shop currently based in Las Vegas, Nevada.
In July 2009, the company announced it would be acquired by Amazon.com in an all-stock deal worth about $1.2 billion. Since its founding in 1999, Zappos has grown to be the world's largest online shoe store.
Zappos uses a loyalty business model and relationship marketing. The primary sources of the company's rapid growth have been repeat customers and numerous word of mouth recommendations. Of its customers, 75% are repeat buyers.
The company's customer service reputation has been augmented through viral spreading as well: "Shoe merchant Zappos has benefited from Internet wildfire. When Zappos offered special return shipping assistance, beyond their company policies...the good word about the company spread quickly throughout the blogosphere."

Type:    Subsidiary of Amazon.com
Industry:    Retail
Founded:    1999
Headquarters:    Las Vegas, Nevada, United States
Warehouse:    Shepherdsville, Kentucky, United States
Key people:    Nick Swinmurn, founder, Tony Hsieh, CEO, Chris Nielsen, CFO
Products:    Shoes, handbags, eyewear, accessories, clothing
Revenue:    US$1 billion (2009)
Owner(s):    Amazon.com
Employees:    1500+
Website:    zappos.com