A faceless entity on the Internet usually raises a few eye brows, especially when you're trying to make sales on your website. If you really want your readers to understand who you are and trust you then you need to go beyond the regular 'About Us' content and add some real pictures of yourself with it. If you are the only person, then all right; but if you are not, then get the entire staff in on the fun with their photographs, as well. Everything adds up, and when you do these little things with your audience then they will take notice. All you are trying to do here is try to reassure your visitors that there are honest people behind the site they are on.
Content has become more important than ever, and actually it has always been extremely important for serious businesses. Let alone buying from you, they wouldn't even seek free content from you if you're going to give them junk. Gaining the trust of your audience can only happen if your content is able to perform as it should. Some markets are more information intensive than others, but just make it a policy that everything you publish is solid in terms of being factual. They have to be able to grasp what you are telling them, and that all goes back to talking to them in their language. Of course you want to help your audience, and getting the very best facts on what ever you are writing about is essential.
A contact form page must be on your site if you want to be taken seriously and look legitimate. Nothing wrong with that, but there are times when your visitors will want to call you directly on your telephone and talk to someone real. We also know of people who do this, and they reported no one ever calling the number. Most of the websites that are focused on scamming people don't list out a phone number and keep their identity a secret. But you should go beyond everything to separate yourself from this shady crowd of Internet marketers and webmasters. The best situation is to know what is needed when you are just starting out, but who really is ever in that position?