Zappos Acquired by Amazon

As readers of this blog know, I visited Zappos - the online shoe retailer - about a month ago. I was intrigued by the culture and the incredible customer loyalty generated by the firm. Today, I read that Amazon has agreed to acquire Zappos for $847 million. While I think the acquisition makes a good deal of sense strategically for Amazon, I wonder about the cultural fit. Will Zappos be able to preserve its unique culture? I think Amazon will want to preserve it because the company has delivered such amazing customer service, but I'm sure pressures will emerge on that culture over time.