Show related items in SharePoint 2010 with a Content Query WebPart based on Managed Metadata Service. See this post to see how setup this configuration.

How to prevent XSL namespaces from being rendered in HTML result. This can simply be done as shown in this post.

Use Powershell to create a Managed Metadata ServiceApplication. In this post is a sample Powershell script shown to create the SSA.

Use XSLT to remove HTML comments, attributes, nodes and more. I.e. when migrating HTML to new content management system.