Top 20 NuGet xamarin Packages

Still a work in progress, not ready to be installed. Custom control for your Xamarin.Forms project to add AdMob integration
LinkedIn Authenticator Plugin for Xamarin.Forms
Facebook Authenticator Plugin for Xamarin.Forms
Shim.Drawing is a portability package providing a minimal subset of System.Drawing, that enables using the imaging processing functionality of AForge.NET and Accord.NET Frameworks in mobile applications. This package contains evaluation DLL:s for Xamarin.iOS (Unified and Classic API:s), Xamarin ...
This package implements the IOC provider contracts via AutoFac
Custom Cells for your Xamarin.Forms project to allow you to create highly customizable, performant Listviews and TableViews. Ensure you call ExtendedTextCellRenderer.Init() on each platform! VISIT THE PROJECT URL for more info.
The assembly contains platform specific credentials providers for Sitecore Mobile SDK framework.
[DEPRECTATED] Use Xamarin.Google.Android.Vending.Expansion.Downloader instead. C# implementation of Google's Android APK Expansion Downloader.
Rounded BoxView for your Xamarin.Forms project to allow you to create circles. Ensure you call RoundedBoxViewRenderer.Init() on each platform! VISIT THE PROJECT URL for more info.
AMSLoginForms is a libray that allows you to login using Azure Mobile Services directly from your Xamarin.Forms Apps. You can use it simply calling the DependencyService
Simple platform independent location manager for iOS and Android (Xamarin)
A RFC6455-compliant web socket implementation.
Serilog event sink that writes to Xamarin Android.
Serilog event sink that writes to Xamarin iOS.
These custom controls make it faster and easier to create great apps using Xamarin.Forms. The controls currently included are: SimpleList: For small lists, the UI of the built-in ListView leaves a lot to be desired. You can use a StackLayout, but then you lose the ability to have an It...
The Microsoft Band SDK gives developers access to the sensors available on the band, as well as the ability to create and send notifications to tiles. Enhance and extend the experience of your applications to your customers' wrists.
C# bindings for MaterialLoadingProgressBar library. MaterialLoadingProgressBar provide a styled ProgressBar which looks like SwipeRefreshLayout's loading indicator(support-v4 v21+). https://github.com/lsjwzh/MaterialLoadingProgressBar
A common library for PCL containing useful 'helpers' for MvvmCross.
Customizable Xamarin.Forms title bar for Android & iOS: place up to 5 buttons inside it and position/paint the bar as you want.
XLabs is a open source project that aims to provide a powerfull and cross platform set of controls tailored to work with Xamarin mobile. This package contains serializer wrapper for SystemTextJson. It currently supports Android and Windows Phone platforms.