Shopify is a hosted ecommerce platform with full design control, customer profiles and reporting, blogs, optional iPad-based point-of-sale software, and unlimited phone support.
Many third-party apps are available, including integrations with shipping, marketplace management and marketing software. One-way eBay and Magento inventory import apps are available for free.
Volusion is a fully-featured hosting shopping cart.
Inventory management, order processing, SEO and social media marketing features are included. eBay and Amazon integrations are part of the core platform, other integrations may require paid-for third-party apps.
Has a single interface to manage inventory, product information, WebStore sales, Selling on Amazon, and Fulfillment by Amazon.
Orders are processed via Amazon’s payments system, and customers can use their Amazon login. Merchandising features include top selling products, recently viewed items, and customer reviews. Multiple stores can be run on multiple domains for one monthly fee.
Marketing features include e-mail campaign management, search engine advertising, and web analytics.
View Amazon Webstore.
An add-on for osCommerce and Zen Cart (free, open source, online shop solutions). AuctionBlox integrates these web stores with eBay auctions, offering automated listing and relisting, easy payment processing, and cross-selling.
View AuctionBlox eMarketConnect.
Extension for Magento that provides listing to Amazon, inventory synchronization, order import, and shipping confirmation.
Multiple Amazon accounts and countries are supported.
View Boost My Shop Magento Amazon.
ekmPowershop is a hosted shopping cart with a flat pricing structure.
ekmPowershop offers over 150 customizable design templates, unlimited products and categories, and eBay synchronization. Marketing features include email campaigns, integrated blogs, discounts, loyalty points and cross-selling.
A number of payment providers are supported, and there are integrations with marketplace management and order processing tools.
Integrates the Magento shopping cart with the eBay marketplace. Can be used to create and manage listings, automatically synchronizes stock levels, imports eBay orders, leaves feedback. Includes support for multiple eBay accounts and Magento stores.
View M2E Pro.
Created in 2007, PrestaShop is an open source shopping cart used by more than 185,000 online stores worldwide, with a community of more than 600,000 merchants, developers, and designers.
PrestaShop has a large number of inventory, checkout, CRM, reporting, design, shipping, payments, SEO and marketing features built-in and hundreds of third-party modules.
A separate Windows-based Store Manager application is available for offline and bulk editing.
eBay's web storefront service has four different tiers and offers listing to eBay.com and eBay stores as well as the sellers' own online shop. Web design and marketing services are available for fixed fees.
Ecommerce system with enterprise features for operations, security and fraud prevention, inventory, order and customer management and international commerce. Formerly Make-a-Store.
View Upshot Commerce.
Yahoo Stores is a hosted shopping cart, with a built-in store design wizard as well as support for third-party HTML editors.
Products can be added using a wizard or file upload. Yahoo! Ecommerce supports downloadable products, and customers can save their credit card details to use later. A range of payment gateways are supported and a third-party app store offers additional features and customization options.
View Yahoo Stores.