Industry insiders give great ecommerce tips all the time.  Here is a list of them for November 2009.  Localize Site – if you are a big retailer, then localize your web site with your retail stores.  That way you have the same products available in store as is online.  Message above the fold – it is important to keep your important messages at the top, such as newsletter sign up boxes, navigation, reviews, etc.  Testimonials – it is always a great idea to post testimonials from your customers.  It gives your company credibility when there isn’t a face to face transaction.  Help – things are harder for everyone, if you help others, it will come back to you.  FAQ – be sure to have a faq page that answers commonly asked questions.  Such as if your company takes credit card processing payments.  This not only answers their questions quickly & effectively, but reduces your customer service calls.  Goals – always have focused business objectives and clearly define when they have been achieved vs if you should go back to the drawing board.  Sophisticated shoppers – do not forget to appeal to the sophisticate users, such as the ones that like to use videos, zoomable images, etc.