Top 20 NuGet silverlight Packages

A contrib project for MVVM Light, adding support for coroutines and a screen conductor.
ReviewBugger is a class that can be added to Windows Phone projects and can be used to bug app users to leave you reviews and rate your app on the Marketplace.
Dependency tracking for Silverlight in the spirit of KnockoutJS.
The Polaris User Interface package contains elements that simplify the development of attractive and fluid user interfaces. Actions, Animation extensions, Controls, Converters among other user interface functionality is contained in this package.
Simple Bayeux protocol implementation for variety of .NET platforms.
Default JSON Deserializer for wrapper libraries that provide high-level access to the Guild Wars 2 API ( http://wiki.guildwars2.com/wiki/API ).
WhatsNew is a class that can be added to Windows Phone projects, and which can be used to notify users of any feature updates.
Controls library for Fayde.
Experimental Controls library for Fayde.
Controls, components and utilities for your next WP7 Application
Extensions for the Caliburn.Micro Framework
Validation extensions for MEF and MVVM.
Example usage of the Silverlight Multi File Uploader. The Silverlight Multi File Uploader is a free Silverlight 5 application. It can be used to upload multiple files simultaneously to your website. It can be integrated on any HTML page.
The complete nRoute package for WPF, Silverlight 4, and Windows Phone 7.X.
The a subset of the nRoute Framework for WPF, Silverlight 4, and Windows Phone 7.X.
PostSharp Auto-Magic INotifyPropertyChanged done right
Makes your life easier to develop multiplatform applications
The "Cocktail Async Pack for Visual Studio 2012" enables Cocktail/DevForce 2010 projects targeting .NET Framework 4.0 or Silverlight 5 to use the Async language feature in C# 5 and Visual Basic 11. This pack requires Visual Studio 2012 and will not work with Visual Studio 2010.
The "Cocktail Async Pack for Visual Studio 2012" enables Cocktail/DevForce 2010 projects targeting .NET Framework 4.0 or Silverlight 5 to use the Async language feature in C# 5 and Visual Basic 11. This pack requires Visual Studio 2012 and will not work with Visual Studio 2010.
Cocktail is an application development platform that takes the pain out of the development of data-driven rich XAML applications.