Why not make sure the website you use works as hard as you do to establish credibility? Let's look at elements that can be built into a well-designed website to enhance credibility in the eyes of your potential customers.
Offer a Guarantee
Nothing beats a solid, believable guarantee for building credibility online. It may be hard to believe, but buying via the Internet is still unfamiliar and uncomfortable territory for many people. It is up to you, the business owner, to put their minds at ease. One way to do this would be to offer an unconditional, 100% money back guarantee. By assuming all of the risk, you will earn instant credibility points with most potential customers.
Provide Contact Information
Even the best guarantee won't help establish credibility if the potential customer cannot contact you. Post accurate contact information on your website and make it easy to find. Provide as many methods of contact as possible; do not simply post a link to an email address. For maximum credibility, post the complete mailing address, phone number (preferably a toll free number), and email addresses for customers to use if they feel the need to contact you.
Provide a Brief Bio
Familiarity is one of the most effective tools for building credibility on the Internet. How do you establish familiarity in a faceless, impersonal medium like the Internet? Simple, tell people about yourself. Post a page that provides a thumbnail sketch that describes who you are. Be sure to include personal data as well as professional credentials. Place your photo on the page so people can put a face with your name. Creating familiarity will impart another level of credibility for you and, by extension, for the product you represent.