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.
Art Cyclopedia
Artcyclopedia: Victor Vasarely
Contains several links where Vasarely's artwork can be viewed, along with information about the artist.
CGFA
Carol Gerten Fine Arts: Georgia O'keeffe
Brief biographical entry on the life of American artist, Georgia O'Keeffe. She is best known for her abstract and still-life compositions.