The following is an extract of a recent policy decision by the ACS regarding 3D coordinates, and other information published on a Web site. The "I" is not me, but someone else. "The posting of work on an electronic bulletin board constitutes prior publication and such work cannot be accepted for publication in JACS. I recently requested clarification from a Senior Research Associate at the ACS and received the folowing response. The current Notice to Authors for JACS states 'the work reported therein has not received prior publication and is not under consideration for publication elsewhere in any medium, including electronic journals and computer data bases of a public nature.' The revision that you mentioned they plan to add of 'electronic bulletin boards' only makes it more clear that JACS won't print items previously posted. " This produced extensive disucussion, which is archived on http://www.unige.ch/crystal/w3vlc/dis-wwwpub.html Curiously, the ACS edict does not mention WWW, but refers to "electronic journals or bulletin boards". I might add from my own experience with the recent ECCC-2 conference, that informal approaches to ACS journal editors seemed to imply that if the electronic material was only up for <30 days, it might not count! Hence, ECCC-2 as a chemistry conference, ran for <30 days!! Finally, I might mention that the ECTOC conference CD is the entity that will be abstracted by CAS, not the electronic version. Dr Henry Rzepa, Department of Chemistry, Imperial College, LONDON SW7 2AY; rzepa@ic.ac.uk via Eudora Pro 2.1.3; Tel (44) 171 594 5774; Fax: (44) 171 594 5804. World-Wide Web URL: http://www.ch.ic.ac.uk/rzepa/ ----- chemweb: A list for Chemical Applications of the Internet. To unsubscribe, send to listserver@ic.ac.uk the following message; unsubscribe chemweb List coordinator, Henry Rzepa (rzepa@ic.ac.uk)