Top 20 NuGet messaging Packages

Additional serialization provider for NanoMessageBus based on the Newtonsoft Json.NET library.
Additional logging provider for NanoMessageBus using Log4Net v1.2.10.
Additional logging provider for NanoMessageBus using NLog.
Additional messaging provider for NanoMessageBus using RabbitMQ messaging infrastructure.
Autofac support for Windows Azure Service Bus wrapper modeled after the NServiceBus pattern of IHandleMessages<T>
Castle Windsor support for Windows Azure Service Bus wrapper modeled after the NServiceBus pattern of IHandleMessages<T>
Ninject support for Windows Azure Service Bus wrapper modeled after the NServiceBus pattern of IHandleMessages<T>
StructureMap support for Windows Azure Service Bus wrapper modeled after the NServiceBus pattern of IHandleMessages<T>
Unity support for Windows Azure Service Bus wrapper modeled after the NServiceBus pattern of IHandleMessages<T>
Use this with Windows Azure Service Bus and Notification Hubs client registration (for Windows Store and Windows Phone 8 apps). It adds Microsoft.WindowsAzure.Messaging.Managed.dll to your project. This package is for developing Windows Store and Windows Phone 8 applications with C# (managed)
Lightweight HTTP Services Library using DuoVia.Net.
Client library for OWIN-based lightweight services .NET.
ServiceProxy.Redis is a simple request/reply messaging framework built on Redis queues that support service contracts using ServiceProxy and the StackExchange.Redis library.
BusQ is a .NET component that makes easier for developers to work with Azure Service Bus Queues
A ScriptCs script pack for Rebus.
.NET library for routing graph based process coordination
An extension to ScriptCs.Rebus for using RabbitMQ as transport mechanism.
An extension to ScriptCs.Rebus for using Azure Service Bus as transport mechanism.
CloudQueueBus provides lightweight infrastructure for sending and receiving messages with Azure Storage Queues.
Helpers for generating text for special message types, ready for sending using PSWinCom Gateway Client