There's not much I can add to this statement stitched by Kwgronau! Except maybe that I recently started a Flickr Group dedicated especially to Embroidery Stitches. It's called the Embroidery Stitch Gallery and you can check it out here. It focuses on stitches and techniques rather than finished pieces. Viva la Stitch would have been a great name for that group.
In the near future I intend to write a post (or maybe several) about fill stitching. Not just about the 'traditional' fill stitches (like the satin stitch) but also semi-fill stitches (like the seed stitch) and creative use of filling your embroidered piece like the one I showcased last week. So if you have a wonderful photo posted in the Embroidery Group please tag it with FillStitch so I will be able to find it easily. I may get in touch with you to ask you about your techniques. Thanks in advance! Viva la Fill Stitch!
