CrystalEye is a project running at the University of Cambridge/Unilever School of Informatics and the screenshot below is self-explanatory.
Based on what I have seen Nick Day is doing a fine job. As of September 2007 there are over 100,000 CIF files aggregated already. The data are all labeled as Open Data so we could index the related 2D structures and link out to CrystalEye. I’m interested in whether our users have an interest in us linking up?