The twentieth Jurix conference will take place in Leiden, The Netherlands, December 12-15, 2007. Topics of the conference include legal ontologies, legal argumentation, multilingual legislative drafting, legal XML standards, online dispute resolution, etc. There will also be several workshops and tutorials, on modelling legal cases, multimedia ontologies, access to justice, legislative XML, and technology-enhanced dispute resolution. See the conference web site for information about how to register.