Buying products on the web can be scary. Most customers would be happy to assist you. Here's a sample letter to use. When job is finished ask your customers what they liked best about your product or service. Have them sign a release form granting their permission.
Word of mouth can be powerfully persuasive.
Here's a few ideas for you. I urge you to tap into the power of testimonials for promoting your business. Article by Kristie Tamsevicius, President of Kristie's Custom Design. KCD delivers BIG business ideas on small budgets with web design, graphics, hosting, and web site promotion services.