Useful crystallographic resources

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IUCr main page

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ECA main page

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  CCP-14  site for powder diffraction (recommended)

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CCP-4   site for macromolecular crystallography (recommended)

The EBI maintains one of the world's largest collection of free software for molecular biologists.
Chemistry software and information resources
Electron microscopy resources
Geological software
Fast Fourier Transform (FFT) code
Fortran libraries
Neutron scattering software
Neutron scattering WWW pages
Rietveld programs, Rietveld method