One of more popular on-premises blog posts on our blog is a post called Exchange Active Directory Deployment Site. It deals with methodology for installation of new Exchange servers into live production environments, while having as little impact to existing users as possible.
Seeing that the post has been so popular, I wanted to mention that authors have made a major update to the post a few days ago. We believe that the original post has been linked to directly many times, so we wanted to reuse the existing post location rather than post a brand new version.
Check it out!