Art Cyclopedia
Artcyclopedia: Artists by Movement: Abstract Expressionism
This Artcyclopedia site offers a brief overview of Abstract Expressionism and a timeline that links to each artist.
Smithsonian Institution
Smithsonian American Art Museum: Hyman Bloom
As part of the Smithsonian Art Museum's database of artists, Hyman Bloom is described here along with information on his contributions to art through his work with paintings and drawings in the tradition of expressionism.