Brazilian Dimensional Embroidery International Guild, Inc.  Formed in 1992, this guild specialized in the promotion of Brazilian and Dimensional embroidery through it's newsletter, seminars, and classes. 

For general embroidery, check out the Embroiderers Guild of America.

International Old Lacers, Inc. is a great organization for all forms of lace making.

For thread, fabric, and other supplies to use for needlework, check out these on-line vendors:

Brazilian embroidery threads, designs, video and more: Anna G. Brazilian Embroidery

Brazilian embroidery threads, designs, and much more: JDR Brazilian Elegance

Australian outlet for Brazilian embroidery threads, designs and more: Blackberry Lane

Silk fabrics and silk paints: Dharma Trading Co.

Linen fabrics, Brazilian embroidery thread and much more: Nordic Needle

Wire for stumpwork and wire and floss flowers: Paramount Wire Co.

Please check your local needlework and craft stores first and support them if possible.  These links to on-line vendors are for you convenience if you can not find supplies locally. This list is by no means complete, but they are vendors that I have found to be reliable. 

Any needlework guilds or supply vendors who would like to have reciprocal links added, please contact me.