I mean restrictive terms of identification. (See Strunk + White p. 3)

Basically I'm addicted to putting commas into phrases like "The online journal, Image and Narrative," because you use them in parenthetical phrases. It's something I find really hard to catch, when I make the error and was really proud when I caught myself before putting a comma into the phrase "Uzbek pop singer Sevara Nazarkhan" but I put them into the phrase above which was in the very same sentence (*headdesk*).