FREE Stitching Guide from WIndflower. This is a site primarily for stumpwork, but this stitch guide is good for all hand embroidery. Very detailed instructions and lists of what to use that particular stitch for.
Every once in awhile Urban Threads puts out a free pattern. I <3 Urban Threads. This definitely isn't your Grandma's embroidery, ;) Love and Cupcakes | Urban Threads: Unique and Awesome Embroidery Designs
Great, whimisical free embroidery pattern on this page. The instructions are for dyeing the string...but go to the bottom of the instructions and click on the either the pic of the pattern or the pic of the finished product and you will be taken to a page to download the .pdf pattern file.