Center for Crystallographic Research

Michigan State University, Department of Chemistry

Selected Crystallographic Organizations

International Union for Crystallography: IUCr

American Crystallographic Association: ACA Home Page

Sheldrick's Home page With good Information SHELX HOMEPAGE Tutors

CIF Information regarding CIF file format.

Cambridge Structural Database CSD Home Page.

Inorganic Crystal Structure Database ICSD Welcome Page

International Center for Diffraction Data (ICDD)

Protein Data Bank (PDB).