Some of my favorites are:
Judi Hurwitt, mixed media and textile artist, great tute on stamp making -
http://approachable-art.blogspot.com/
Laura Wasilowski, a true genius with fusible web, great resource for embroidery stitches -
http://artfabrik.blogspot.com/
Holly Knott, quilter, photographer, website designer, etc who shares great info on all of it -
http://fingerlakesart.blogspot.com/