Here is a quick excerpt from Tim Castleman’s recent blog post:

1. When a customer buys give them a chance to spend more money right away. They will never be hotter than they are at the time of purchase so give them every chance to spend as much as they want with you.

2. Make it easy for others to tell their friends about you. Give discounts, coupons, free trials, and more. One hairstylist I know offers a $25 discount per hair cut when you refer someone to his business. Get 4 friends to visit and the next cut and color is on him. He tracks the referrals on fancy 3×5 cards

Too simple you say?

Well he went from nothing to several dozen clients a week doing little more than this.

My point is make it easy for your champion customers to do battle for you and give them all the tools they need to do so.

3. Focus on the total customer experience. Remember that you will be judged on everything you do and send to your customers.

You can view the entire post here:
http://timothycastleman.com/grooveshark-com-marketing-lesson.html