Mosaic Art Source
- Informative blog on mosaics.
- http://mosaicartsource.wordpress.com/

MOSAICO: Society of Houston Mosaic Artists
- A group that serves to promote mosaic art in Houston, Texas, to share knowledge between member mosaic artists and to provide instruction in mosaic and glass art to the public.
- http://www.mosaico.ws/

A.I.M.C.
- An international association of contemporary mosaicists founded in Ravenna.
- http://www.aimcinternational.com/

Mosaic Association of Australia
- Australian organization for both enthusiasts and professional mosaic artists.
- http://mos-oz.org/

Society of American Mosaic Artists
- Non-profit organization dedicated to the promotion of mosaic art and the development of mosaic artists.
- http://www.americanmosaics.org/

Association for the Study and Preservation of Roman Mosaics
- The design, construction and building sites for Roman mosaics in Britain. Articles on the relationship between mosaics and  art, architecture, religion and history.
- http://www.asprom.org/

British Association for Modern Mosaics
- British association of contemporary mosaic artists, also know as BAMM. Hosts exhibitions and publishes the newsletter; GROUT.
- http://www.bamm.org.uk/