| xray.cz | Czech and Slovak Crystallographic Association (CSCA) |
| sca.asn.au | Society of Crystallographers in Australia and New Zealand (SCANZ) |
| pittdifsoc.org | The Pittsburgh Diffraction Society |
| uhp-nancy.fr | Special Interest Group on Mineralogical Crystallography |
| iucr.org | International Union of Crystallography (IUCr) |
| buffalo.edu | American Crystallographic Association (ACA) |
| ecanews.org | European Crystallographic Association (ECA) |
| bbk.ac.uk | British Crystallographic Association (BCA) |
| sgk-sscr.ch | Swiss Society for Crystallography |
| fzu.cz | Special Interest Group on Aperiodic Crystals |
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