George Morgan (a frequent speaker at PGS monthly meetings) wrote an article for Ancestry.com titled "Obtaining Vital Records." The article covers topics such as why seek out those records, where to find them, what to ask for when you order them, and how to interpret them.
This is a good, detailed article on the subject of vital records, and will be of value for experienced as well as neophyte researchers. Vital records are key to our documentation efforts, and George's article addresses basic issues about them.
Check out George's article at: http://tinyurl.com/ye4q5ma