I read somewhere of Ecoliwiki, a wiki about E. coli (not a surprise), and this led me to MetaBase, a user contributed list of biological databases. The initial data comes from the database issue of Nucleic Acids Research, and there are conditions of use (see http://biodatabase.org/index.php/Help:About#Database_Description)
You can search it, or browse it by category. I searched for "human genome", and found no page matches, but got links through to title matches. Some of the links to those titles appear to be faulty, and need another click to get to the correct resource. Once you have the details of a resource, though, you get a database description, a link to the database itself, and contact details if they are known.
Ecoliwiki's details are here. There is also a guide to using MetaBase.