Marnie MacLean - Marnie designed these Lake Park Hat and Gloves with a slipped stitch pattern that really highlights her pretty handspun.
Spindlicity - check out the projects section in every issue of this online magazine for handspinners.
Knittyspin - Knitty is a great source of free knitting patterns and since the Spring 2006 issue they've been including patterns especially designed for handspun yarns in the Knittyspin section. Here are direct links to some of the patterns: