Uh, I'm rather new to Wiki editing, but this article needs a little help! I'm unsure why, for instance, "The Preparation" links to the article for the Byzantine "proskomede" and "Offertory" links to the "Anaphora" article. In fact, the only rough equivalent to the Byzantine prothesis in the Roman Rite is the Offertory (the elements are prepared and offered in the middle of the Mass, not the beginning). Likewise, the Roman Mass's "Canon" is the equivalent of the "Anaphora" of the Eastern Liturgies.