About

A fanlisting is simply an online list of fans of a subject, such as a TV show, actor, or musician, that is created by an individual and open for fans from around the world to join. There are no costs, and the only requirements to join a fanlisting are your name and country. Fanlistings do not have to be large sites (although some are), they are just a place where you can sign up with other fans.
To learn more about the namelistings, please check NL.org.

About "William"

William is a popular proper name of old Germanic origin. It became very popular in the English language after the Norman Conquest of 1066, and remained so throughout the Middle Ages and into the modern era. The modern German equivalent is "Wilhelm." It is sometimes abbreviated "Wm."

Its meaning is "Harnessed with a guilded helmet".