this site has every embroidery stitch known to man...i think!
embroidery | Christmas Tree Embroidery Pattern - Free Embroidered Christmas Tree ...
tutorials for almost any stitch
blackwork embroidery free patterns | To see all the designs on the CD in detail click here
How to Make a Colonial Knot http://mysweetprairie.blogspot.com/2012/02/saturday-stitches.html