Yes
NITRC
NeuroVault
Yes
Python
NeuroVault makes uploading statistical maps easy and straightforward. In addition it provides permanent links to attractive volumetric and 3D (surface based) visualisations of your data.
NeuroVault
PET/SPECT, MR, Database, 4 - Beta, Web Environment, End Users, English, Python, NIfTI-1, Tourette Syndrome, Schizophrenia, Migraine Disorders, Alzheimer Disease, Attention Deficit Disorder with Hyperactivity, Stroke, Brain Injuries, Depression, Bipolar Disorder, Substance-Related Disorders, Autistic Disorder, Epilepsy, Parkinson Disease
http://www.nitrc.org/projects/neurovault/, http://http://neurovault.org