This document discusses various natural language processing (NLP) tools that can be used from .NET, including SharpNLP, Stanford NLP for .NET, IKVM.NET, OpenNLP for .NET, and MaltParser for .NET. It provides links to pages with code samples and tutorials for tools like Stanford NLP.NET, which implements popular NLP libraries like the Stanford Named Entity Recognizer and Part-of-Speech Tagger for .NET. It also demonstrates how NLP can be used to find related questions on Stack Overflow before a user posts a new question.