Reference assistant helps you visualize the dependencies in your .NET application to help speed up development, improve your deployments, and debug sticky dependency bugs.

Some of the interesting features I read about were their Visualizer for IoC / DI configuration files, ability to identify missing assembly references, and configuration file type resolution.

You can check out their extension here:http://visualstudiogallery.msdn.microsoft.com/en-us/BA1FF7E5-1C24-4386-AD40-1C1C83BC59F0.