CIF
Info
(Direct link to IuCr 'CIF information' site - contains info on
preparing
CIF files for publication, and has links to 'checkCIF' & 'printCIF'
sites.)
CIF
Dictionary (Direct link to IuCr 'CIF Dictionary' site.)
CCP14
(Initiated
by 'Collaborative Computational Project No. 14', this site contains a
vast
storehouse of links to free software for academic users for powder and
single crystal diffraction applications.)
Prof.
Pat Woodward's Powder Diffraction Site (This website was
constructed
by Ohio State U. Prof. Woodward to accompany his course on Powder
Diffraction.
It offers a good backround on the subject, and gives several useful
links.)