Yes, I know Blintzes in Birdland is a Zoot-centric story... But as it stems off of your Newsie+Gina continuity, and since it was refered to in Death and the Matron, I thought it best to have it as Minibook 1 in your overall narrative.
If it's a story that really doesn't tie into an author's major continuity, then I give it a separate heading such as Slackbot's entry in the Animated FR category or Sara's poems.
Hope this helps explain it a bit better.