Sewists and quilters can buy good quality fabric and thread for reasonable prices, especially on one of their frequent sales. Everything arrives packaged well and in fast enough time. They also sell books, tools and kits.
Perfectly digitized designs are necessary to successful embroidery. This site always delivers this. They have a wide variety of subjects, all in easy to locate categories on the website. Something is always on sale. A pdf file comes with each design that lists the change of thread color and an image of the design so you can easily change the thread color if desired.