nopCommerce 是一个由ASP.NET多层模式开发的开源电子商城系统，可以自行设置模板、配置灵活、功能强大，它内含一个目录前端和一个管理工具后端。前端包括用户注册、商品购买(可以进行评论)、投票、Blog等，后端有类别管理、产品管理、客户及角色管理、订单管理、纳税管理、国家（地区管理）、邮件发送、消息模板、新闻发布、blog管理,可以对列表数据进行XML导出。
Highlight features
Architecture improvements
Moved to ASP.NET MVC 3.0 (Razor syntax)
Really pluggable architecture (just drop a plugin to the /plugins folder in your nopCommerce directory)
SQL Server Compact support
Code-First Development with Entity Framework 4 (data access)
More flexible ACL implementation
More user-friendly admin area
Added unit tests

Improvements

Performance optimization
reCAPTCHA integration
New tier prices implementation (now can be configured based on customer roles)
Several discount requirements can be configured per discount
Allow store owner to create a new purchased gift card without placing an order
Some of existing discount requirements didn't work for guests
Search for customers by name in administration
Merged product reviews and ratings options.
Email wishlist to a friend
Admin area. Show operation status after it's completed (Save, Delete buttons)
New installation wizard (The orchard project contribution)
Simplified register page. Removed a lot of fields that were not used at all.
Fill the "EstimateShipping" module on load with the country/region/zipcode of the current customer
Allow store owner to manage the number of product tags that appear in the tag cloud
Removed warehouses and pricelists features because they were useless
A lot of refactoring and other improvements

Bugs

Tax rounding issue fixed
Some shipping issues fixed
Download catalog as PDF. Currency values had 4 decimal places
Select payment/shipping method radio button text was not clickable
Hide prices for non-registered customers didn't work on tier prices
Renamed PayPal PTI to PDT
MS Excel importing issue fixed
A lot of other bugs fixes