Other portrait artists:

Nelson Shanks
Ralph Wolfe Cowan
Frank Covino
Gary Fox
Lynnette Moench Perkes
Allan Banks
Gradiva Couzin

Portraits, Inc.
de Portretwinkel
Northeast Portraiture
Portraits South
The Portrait Source
A Stroke of Genius Portrait Gallery
Portrait Brokers of America
LaGuire Fine Arts
Art Wave - Index of Portrait Artists
ALL the Portrait Artists on the Web

Associations, galleries, and museums:

The Grenning Gallery
Agora Gallery
Richard R. Gandy Gallery of Realist Art
The Rennaisance Café
American Society of Portrait Artists
International Guild of Fine Artists
National Portrait Gallery, London
American Society of Classical Realism
The British National Portraiture Association
Essay on R. H. Ives Gammell
National Portrait Gallery
The National Portrait Society of America
Atelier Yoyita
Mark Ingram Photography

Art schools:

Charles H. Cecil Studios
Minnesota River School
American Society of Classical Realism's Atelier List
The Florence Academy of Art
Atelier du Nord

Traditional painting materials suppliers:

Zecchi -fine art and restoration materials
The Sinopia On-Line Pigment and Raw Artist Materials Catalogue
Studio Products