Reviews – Highlight reviews of products showing that other people shop at your eCommerce store.
Testimonials – Customer testimonials (with faces) on pages may help. Embedding a tweet adds freshness to this section.
Contact – Make your contact info clear. You may even want to put it at the bottom of every page.
Policies – Returns policy / other policies easy to find.
Thought leader – Educate users on your products. Being a thought leader can be beneficial.
About – A photo of your staff in your About page can help. If you were previously a founder of another company or worked for a well-known company, do mention it clearly.
Credibility – If you're a member of Better Business Bureau, post your grade (badge) on your website.
Live chat – Live chat may help build a relationship, which can build trust.
Touch-Point #3: When they put the items in the cart
Now they have put items in their cart. You have a visitor with an intent to purchase, so let's not lose them. They're so close to becoming a customer, but how do you assure them through the checkout process and complete the sale?
Mention – the number of orders to be shipped.
Show – where your shipping facility is. People may like to know where their product is coming from.
Get – an SSL certificate to make sure you have https.
Contact – List the phone number(s).
Delivery – Show a delivery date and not the shipping date.
Security badges – like McAfee Secure, VeriSign, etc.
Follow these touch-points and implement as many of these recommendations as you can. Over time, you'll find that visitors to your site will be more likely to purchase your products based on the credibility and trust that you've provided.