Kentico CMS for ASP.NET 3.1a

Kentico CMS for ASP.NET is a full-featured content management system for building web sites, on-line stores, intranets and Web 2.0 community sites. It comes with a Free Edition that can be used also for commercial projects.
Main features:
- Advanced content management system with workflow, versioning and permissions
- Easy development and deployment
- Flexible design and navigation
- Smooth integration of custom code and modules
- Full C# source code (available only with source code license)
- Multilingual, UNICODE and RTL support
- Full-text search
- News and RSS feeds
- On-line forms
- Newsletters
- Discussion forums
- Messaging
- E-commerce with PayPal and Authorize.NET support
- Blogs
- Polls
- Web Analytics
- User contributions (Wiki)
- Reporting
- Booking system
- Geomapping
- Search Engine Optimization (SEO) and web standards support
- 90+ web parts
System requirements:
Server-side Requirements
- Business/Enterprise/Ultimate
- Microsoft .NET Framework 2.0 or higher
- Microsoft Internet Information Services (IIS) or Visual Studio/Visual Web Developer 2005/2008 built-in web server
- Microsoft SQL Server 2000, 2005, 2008 (including free SQL Server Express Edition)
Hosting Requirements
- ASP.NET 2.0 (or higher) and Microsoft SQL Server 2000/2005/2008 support
- Medium-trust or full-trust permissions for the ASP.NET application
- If the server uses medium trust, ASP.NET AJAX 1.0 must be installed on the server.
- Its recommended that your hosting plan comes with 125 MB or more memory and 100+ MB database.