Since October 1996, Cambridge University's Pig Disease Information Centre (PDIC) has been on-line. The URL (Internet address) of the PDIC web site is http://www-pdic.vet.cam.ac.uk/. From this base, clicking on icons provides round the clock access to many other pig information sites around the world. The PDIC provides information on diseases, breeding and infertility, UK and international news, and it also provides search facilities and discussion pages for vets.