Top 20 NuGet web Packages

programing framework for web crawler by XAML
A library of core helpers, extensions, constants, enums and other useful things for .NET Web projects.
ASP.NET Web library part of Georadix.NET, a framework for building great .NET apps.
A OWIN server for the Azure Service Bus Relay
This package provides localization support for CodeTorch web apps
Web API 2 library allowing you to define strongly typed direct routes.
This package contains MSBuild task that is designed to optimize all published files in Visual Studio deployment process
Utilize DataAnnotations on your ASP.Net Web API models and return your own complex validation models, flattened models or default model state models.
Simple to use library for returning custom / vendor media type headers when using Web API. Register types explicitly or by convention with overrides, excludes and required custom interface options. eg. application/vnd.yoursite.customer-v1+json
.NET Utils Framework
This is a simple class for spinning up an ASP.Net Web API self host. I use it regularly within my test code.
A library of core helpers, extensions, constants, enums and other useful things for all ASP.NET MVC projects.
A library of core helpers, extensions, constants, enums and other useful things for Sitecore CMS projects.
Owin middleware to make your webpages look cuter. This might dramatically increase the traffic and pageviews on your website.
Hyprlinkr route dispatching based on Drum
Progressive Download Library for WebApi 2
The project contains some of a very useful helpers and extension methods for .NET and Web Applications.
Marvin.HttpCache is a complete implementation of the RFC2616 Http Caching standard for use with HttpClient, for all .NET Framework platforms (Windows Store, Windows Phone, WPF, WinForms, Console apps). Make sure to check the project site for the current status and to learn how to get started.
Rewrites sourceMapUrls to accomodate Cassette bundling.
Sizzle selector support for Selenium WebDriver.