dcsoup is a .NET library for working with real-world HTML. It provides a very convenient API for extracting and manipulating data, using the best of DOM, CSS, and jquery-like methods.
This library is basically a port of jsoup, a Java HTML parser library. see also: http://jsoup.org/
To install dcsoup HTML Parser, run the following command in NuGet Package Manager Console.
PM> Install-Package dcsoup
You can see the API reference at the github page.
Help file is also avaiable. download dcsoup.chm.