DD4T is a light-weight framework which links the SDL Tridion CMS to your MVC web application architecture.
It is available both for Java (Spring MVC) and .NET (ASP.NET MVC 3 and ASP.NET MVC4), and it supports Tridion 2009, 2011 and 2013.
Downloads Template Installer (1.31) https://code.google.com/p/dynamic-delivery-4-tridion/downloads/detail?name=DD4T-template-installer-1.31.zip&can=2&q= Visual Studio template (VS2012/2013, Tridion 2013 + MVC4) https://code.google.com/p/dynamic-delivery-4-tridion/downloads/detail?name=DD4T.1.31-MVC4-Tridion2013-VS2012-VS2013.vsix
Official NuGet packages
DD4T-Framework https://www.nuget.org/packages/DD4TFramework/ DD4T-MVC3 https://www.nuget.org/packages/DD4T-MVC3/ DD4T-MVC4 https://www.nuget.org/packages/DD4T-MVC4/ DD4T-Tridion-2011sp1 https://www.nuget.org/packages/DD4T-Tridion-2011sp1/ DD4T-Tridion-2013 https://www.nuget.org/packages/DD4T-Tridion-2013/ No NuGet? Get the DLLs directly and reference them in your project.
If you plan to create a .NET web site with DD4T, start with the .NET Quick Start https://code.google.com/p/dynamic-delivery-4-tridion/wiki/41_QuickstartDotNet.
There is also a Java Quick Start available. https://code.google.com/p/dynamic-delivery-4-tridion/wiki/31_Quickstart