CMS and E-Commerce Platforms Which are Using Microsoft .NET technologies

SiteCore e-Commerce: A Microsoft .NET based Enterprise Content Management System, and E-Commerce Foundation with many capabilities such as marketing, profile system, personalization,  ... etc.

http://www.sitecore.net/en/Products/Sitecore-E-Commerce.aspx

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"In the near term, the Orchard project is focused on delivering a .NET-based CMS application that will allow users to rapidly create content-driven Websites, and an extensibility framework that will allow developers and customizers to provide additional functionality through module extensions and themes."

http://www.orchardproject.net/mission

http://www.orchardproject.net/