This report, like its predecessor, focuses on areas which have been especially active since the last General Assembly. A major development has been the appearance of the first data and results from such large-scale surveys as 2MASS and the Sloan Digital Spectroscopic Survey, as well as major projects conducted from the ground. We give, for the first time, electronic addresses for selected catalogues and atlases. 2. Working Groups The following working groups all publish a newsletter, which may be accessed along with information on their activities from the Web page of Commission 45: