Crystallization in Foods
   Contains the latest information on how and why crystals form in foods, and how this information can be used to control crystallization. General organization of Crystallization in Foods is set according to the steps that occur during crystallization.
   http://www.chipsbooks.com/crysfood.htm

Crystallography 101
   An Introductory Course by Bernhard Rupp.
   http://www.ruppweb.org/Xray/101index.html

Crystallography and Minerals
   Crystallography groups in mineralogy are composed of 32 classes of symmetry. To illustrate these symmetry elements, example crystalline forms for each symmetry class are represented by a JAVA applet.
   http://web.wt.net/~daba/Mineral/crystall.html

Difference Patterson Tutorial
   A step-by-step guide to solving these problems based on the use of an example.
   http://www.dartmouth.edu/~brenner/pr613.html

Interactive Tutorial about Diffraction
   A pictoral guide to using these techniques especially for working out structural information, largely through the use of illustrative examples.
   http://www.mineralogie.uni-wuerzburg.de/crystal/teaching/teaching.html

Introduction to Cubic Crystal Lattices
   A site introducing the properties of crystals with a cubic unit cell.
   http://www.okstate.edu/jgelder/solstate.html

Kevin Cowtan's Picture Book of Fourier Transforms
   For future crystallographers.
   http://www.ysbl.york.ac.uk/~cowtan/fourier/fourier.html

Knowhere
   Lesson on the geometry and symmetry of elements and minerals using Polymorf, a new math and science manipulative. The topological approach is used to characterize the structure of crystals in terms of linked polyhedra.
   http://www.polymorf.net/knowhere.htm

MSU Chemistry: Crystallography Service
   Explains crystallography procedures and is primarily intended for internal users of their analysis facilities, as well as a reference for students carrying out the work.
   http://www.chemistry.msu.edu/Facilities/Crystallography/crys_serv.shtml

Principles of Protein Structure '96
   Index to course material.
   http://www.cryst.bbk.ac.uk/PPS2/course/index.html

Protein crystallography
   Guide to the Protein crystallography, from Protein crystallization to Structure refinement.
   http://proteincrystallography.org/

SDPD Internet Course
   Commercial e-learning course teaching how to determine a crystal structure from powder diffraction data.
   http://www.cristal.org/course/

Snow Crystals
   Information about the physics of snow crystals and snowflakes as well as the history of early scientific observations and photographs, how to take photos, preserving snow crystals, and unusual snowflakes.
   http://www.its.caltech.edu/~atomic/snowcrystals/

Structures of simple inorganic solids
   An overview of important crystal structures.
   http://www.chem.ox.ac.uk/icl/heyes/structure_of_solids/Strucsol.html

Xtal-protocols
   Manual with information about (membrane) protein crystallization for X-ray crystallography.
   http://www.xtal-protocols.de