Easy resources for procuring conductive fabrics and threads:
lessemf.com – Less EMF has some conductive fabrics available for order on the Internet.
Lame Lifesaver – Conductive thread in small quantities. Suitable for sewing in the bobbin thread.
Silk Metallic Organza is another inexpensive conductive fabric. Unique Fabrics in Melbourne appears to carry the material.
As researched during ANAT’s 2005 Create_Space New Media Lab