Wikipedia edit-a-thon: create or improve Wikipedia articles about women scientists and their achievements. For more info, see http://courses.it.ox.ac.uk/detail/TWOHA. This is part of a series of events hosted by IT Services and the Bodleian Libraries to celebrate the bicentenary of Ada Lovelace, the first computer programmer. Open to anyone with an interest in developing public understanding of women in science. No wiki editing experience is necessary, through experienced editors are very welcome. External bookings are welcome – just email firstname.lastname@example.org.