Modernism Lab: Virginia Woolf
https://modernism.coursepress.yale.edu/virginia-woolf/
The Modernism Lab is a project of Yale University. It provides detailed biographies of the major figures of modernism, including Woolf, and links to other helpful resources. There is also a specific page for Orlando.
Orlando: Women's Writing in the British Isles from the Beginnings to the Present
http://orlando.cambridge.org/svHomePage
This is an extensive database, produced by Cambridge University, of British women writers. The entire project was inspired by Woolf's novel, as the title implies!