Women in the Act of Painting is a terrific blog by Philadelphia painter Nancy Bea Miller that contains exactly what it says on the can.
Miller features wonderful variety of periods and styles, gives background information on the artist — and where possible, the subject — with links to additional images on the web by either or both. Most of the images can be clicked for larger versions.
In contrast to the (also excellent) Women Painting Women blog (my article here), the women painting here are the subjects, and the creators of the works are of both genders (though self-portraits by women artists abound).
You can browse by artist name in the right hand column, or simply click through the “Older Posts” link at the bottom of the pages, as I did, to be continually delighted and enlightened.
(Images above: Avril Thomas, Félix Edouard Vallotton, Lea Colie Wight, Louise-Élisabeth Vigée-Lebrun, Berthe Morisot, John Singer Sargent, Shoen Uemura, Sadie Jernigan Valeri, Edward Hopper, Henri Fantin-Latour, Nancy Bea Miller)