Free eCommerce Web Hosting:
If you only have a single item or service or a very small inventory of items that you wish to sell, then you can find very simple eCommerce solutions that will be a perfect fit for your business and your budget. You will also need to decide if you just want a web store, if it will be separate from your existing site, of if you need a host for a website and store all in one then you will want to choose a host with web store features or add one of the free web store options to your existing site. There are actually quite a few free eCommerce solutions available to you, including the following:
Freewebs: Gives you a website and a store with up to 5 products in your online store with the free account. Upgrade available for more items and this is a very easy to use store builder.
eCrater: Is a great storefront service that lets you put a fully stocked web store online for free and to advertise in their free marketplace.
Real Store: Although in the beta phase, this is still another great option for a free store front with easy to use features.