The Weekly Fix
Like the stories in the old sci-fi, horror, etc. magazines, these stories come bit by bit, release at regular (or irregular) intervals. Novellas, periodicals, episodics, whatever you call them, they are written and published one chapter/episode/piece at a time. Come back every week to see what's new and follow your favorite characters.
Also note that a single series can be written by multiple writers, so if you want to experiment with others, here's a fun place to do it.