The Oblique Rib Stitch is a simple rib pattern that creates a diagonal broken rib and is great for large pieces of fabric like afghans and pillows, or scarves.
The Single Rib Stitch is a crochet stitch that is a great way to simulate a knitted rib stitch with crochet. It does not have the horizontal stretch of traditional ribbing, but can be used to great effect in hats, blankets, and sweaters.