The National Museum of Women in the Arts (NMWA) has an extensive artist profiles page.
Resources from the book Modern Women: Women Artists at the Museum of Modern Art.
Stanford University's collection of materials featured in the 2010 documentary ! Women Art Revolution.
The Heilbrunn Timeline of Art History from the Metropolitan Museum of Art is a chronological, geographical, and thematic exploration of the history of art from around the world, as illustrated by the Museum's collection. It is an invaluable reference and research tool for students, educators, scholars, and anyone interested in the study of art history and related subjects. First launched in 2000, the Timeline extends from prehistory to the present day. The Museum's curators, conservators, and educators research and write the Timeline; it continues to expand in scope and depth and reflect the most up-to-date scholarship.
NGA Images is a repository of more than 43,000 digital images of the collections of the National Gallery of Art, located in Washington, DC. The high-resolution images are available free of charge for download and use.
Google Arts and Culture allows users to visit museums around the world. Its tools allow you to create your own gallery of images, share images with other users, view high resolution closeups that reveal the artist's brush strokes, navigate through the layout of each museum, and search for particular works.
Smarthistory is a "multimedia web-book about art and art history." Watch hundreds of videos conveniently organized by time period, theme, and artist.
Artcyclopedia is a great destination for quick preliminary research.
Webcomics selected for this collection include award-winning comics as well as webcomics that have significance in the field due to longevity, reputation, and subject matter. This collection includes work by artists and subjects not traditionally represented in mainstream comics, including women artists and characters, artists and characters of color, LGBTQ+ artists and characters, as well as subjects such as politics, health and human sexuality, and autobiography.