Guild of Bookworkers
The US national organization for all book arts. (Transient Books has been a member since 2008.)

E.A.R.A (Encuadernadores Artesanales de la República Argentina)
The Argentine national organization for all book arts. (Transient Books has been a member since 2003.)

Movable Books Society
Folks who love books with moving parts. (Transient Books has been a member since 2010.)

The Book Arts Web
The definitive site for the book arts.

Future of the Book
An active forum on the book arts. "Preservation and persistence of the changing book."

Vamp & Tramp Booksellers
Currently representing artist's books created by Alex Appella.

Libros Andantes
Transient Book's blog in Spanish.