Shawn Thomas, designer of neurotransmitter.net is working on a comprehensive and searchable database of neuroscience databases (including atlases.) I know he is very interested in collaborating in order to make it the best it can be, anyone interested please contact Shawn at;
shawn@neurotransmitter.net
Non-corporate/independent sites such as Shawn's will be a great boon to the field of neuroscience IMHO.
Sean