The Only Thing I Envy Men is an essay about women writers by Rivka Galchen, taken from her book Little Labors. The book focuses partly on writing by Japanese women, especially the 11th Century writers Sei Shonagon and Murasaki Shikibu, authors of The Pillow Book and Tale of Genji respectively. The latter has recently been retranslated, and was the subject of a lengthy article in the New Yorker by Ian Buruma.
British Women Romantic Poets Project is a collection of poetry written by women from the British Isles between 1789 and 1832. Over a hundred female poets are represented. Women rarely feature in literary histories of the Romantic period but there is treasure if you search (some poems are, frankly, terrible). A few places to start are Charlotte Turner Smith's Elegiac Sonnets, and Other Poems, Christian Ross Milne's Simple Poems on Simple Subjects and Mary Robinson's sonnet cycle Sappho and Phaon. The oddest works to modern readers may be Elizabeth Hitchener's Enigmas, Historical and Geographical and Marianne Curties' Classical Pastime, which are collections of verse riddles (the answers are at the end of the text).