Cortical Neuron Database Project at nerodatabase.org - a neurophysiology database of recordings from mammalian cortex, a component of the NIH's Human Brain Project

BrainML a neuroscience data description language and functional interface for data sharing and neuroinformatics interoperability

datasharing.net a community resource to support data sharing in neuroscience

Please visit the Laboratory of Neuroinformatics web site for more information:
http://neocortex.med.cornell.edu/