danielcrenna 

TweetSharp v2 is a fast, clean wrapper around the Twitter API. It uses T4 templates to make adding new endpoints easy.

Hammock is an HTTP API library for .NET that greatly simplifies consuming and wrapping RESTful services.

A JSON parser in C#, supporting dynamic deserialization in .NET 4.0

An implementation of OAuth 1.0a for .NET

Capturing CLR and application-level metrics. So you know what's going on. An idiomatic port of Coda Hale's Metrics for Scala and the JVM.

The specification pattern for composable business logic, in C#.

A simple interface for function-descriptor style IoC containers. Includes an embedded Munq container by default.

A thin wrapper around Reactive Extensions for distributed application eventing middleware.

MVC support for the metrics library.

Provides support for the general availability of an HttpContext in either WebHost or SelfHost scenarios. Use this in place of HttpContext when developing middleware, and add the HttpContextHandler first in line in your Web API message handler stack, to support HttpContext wherever your API is... More information

A common caching interface with support for graphing dependencies.

A smart paging library for .NET queryables and enumerables.

Easily render and send emails in your applications. Supports templating, parallel delivery, observable folders, retry policy, backlog, and more.

A simple logging abstraction. You don't have the option of using immediate-mode logging, so you never accidentally kill performance.

An idiomatic bulk insert interface for databases. Allows you to bulk insert arbitrary types to an underlying database using a fast insert mechanism specific for that database. Currently supports SQL Server, MySQL, and SQLite. Works on the IDbConnection with extension methods, like Dapper.

The missing .NET date types; DatePeriod and DateSpan.

A scheduled background worker for reactive.pipes. Allows scheduling long-running tasks in the background.

Painless currency management in .NET.

The part of a micro-ORM that maps POCOs to database tables.

Smart sitemap generation for .NET web apps