When you consider the competitive advantages of an online retailer, customer service is usually not the first thing that comes to mind. Many e-commerce sites, even the large well-known ones, are known for impersonal, mediocre customer service practices. And yet, the few e-tailors that differentiate themselves on serving their customers such as Zappos become well-known case studies in client care. In this post, I'll share some of the unique best practices I've seen over the last few years that serve to differentiate companies in customer service.

1. Prominent Customer Testimonials: Place customer testimonials on more than just the "testimonial" page. Zappos features them right on their main customer service page. A word of caution applies here though. If you're going to "brag" so to speak about your service, make sure you follow through!
2. Free Return Shipping: One of the greatest stumbling blocks to online ordering is the thought of having to return the product. Consider sending customers a pre-paid return shipping label in the case of a product needing to be returned. Because this is rarely done by e-commerce stores, you will certainly set yourself apart in the mind of your customer.
3. Automatic Price Protection: Always honor sale prices of items that were previously purchased by customers. They need to be able to shop with this confidence. Better yet, automatically notify customers when items they have purchased in the past go on sale. Offer to apply the price difference toward a future purchase or just refund the amount. Sound crazy? Maybe, but it's small cost that can win a customer for life.
4. Lenient Return Policy: Make sure your return policy is not unnecessarily complicated or rigid. How many times have you shopped at a certain retailer because their lenient return policy gave you the confidence you needed to buy? (Think Costco vs. Walmart!)
5. Thank You Calls: Call select customers and thank them for ordering. This personalized gesture will blow them away.
6. Thank You Emails: Email certain customers and thank them for their business. Be sure to include something personalized in the email that will convince them it's not just something generic sent to everyone.
7. Do More than Fix Your Mistakes: When your business makes a mistake, be sure that you exceed your customer's expectations when fixing it. If an item was mistakenly left out of a shipment, don't just a apologize, offer that item for free. Many businesses find their most loyal customers result from a highly satisfying resolution to a problem.
8. Fix Other's Mistakes: If a shipment is delayed or lost due to the fault of the shipping carrier, don't just blame UPS, offer a solution. Offer to promptly re-ship the item, or at the very least, offer to take care of the problem with the carrier so the customer doesn't have to.
9. Guaranteed Email Response Time: Most customers expect an email inquiry to be answered within at most 24 hours. If you can, guarantee a response time faster than this. Also, acknowledge the receipt of an email inquiry by employing an auto responder.
10. Secret Shopping: Used extensively by brick-and-mortar retailers, secret shopping is a great way to identify problems and keep your customer service staff on their toes.

I once heard it said that "the enemy of good is not bad, it's mediocre." Too many online retailers struggle with mediocre customer service. Many businesses fail to realize their customer base is also powerful marketing machine. If treated right, they can become to most effective viral marketing campaign imaginable. Treated poorly, and they can become a PR disaster. If you enjoyed this post, please also checkout tips to improve your shopping cart and 25 tactics for improving your checkout.

Be sure to also checkout part 1 of this guide.