The best way to pick colors is to buy a sample card, which you can use each time you order thread. Also carries silk ribbons and dyes. The owner, Maggie Backman, is a great source of information about all things silk. If you re looking for a good source of silk fabrics, start here. They ve got every silk fabric under the sun, except tweeds, matka and other suiting types.
Prices are reasonable.
For a small fee, they ll send you a set of about 400 samples, including lots of prints and a wide variety of white silks for brides and textile artists. An online meeting place for sewing enthusiasts, with links to a wide variety of sewing-related web sites.