It's pretty easy to do. I did it with my Koha catalog already. http://www.galileo.aur.it/cgi-bin/koha/opac-detail.pl?bib=13308 Of course, this works only with standard numbers (ISBNs, LCCNs etc.) so the value is limited. Still, this is a huge step forward by Google. And, it's easier to implement these sorts of things in open source! James WeinheimerReceived on Mon Mar 17 2008 - 04:13:43 EDT