Anyone who knows about some missing black holes can click the "edit" link and add the black hole; its quick and easy. On the other hand, creating the images to add a new black hole map and publishing to the Wiki is more difficult. Please read the instructions or contact me by sending a PM to "squeemish" though the SGE forums.
Viewing the maps requires any modern browser. It won't work properly in Internet Explorer 6, 7 or 8/compatability mode, but all other browsers and regular mode IE 8 will work.