For IUI 2008 workshops, participants will have to register for the main IUI conference in addition to registering for the workshop. To clarify, a workshop participant (student) will have to pay Euro 345 + Euro 95 = Euro 440 to attend the workshop (within early-registration dates). The fees and deadlines for registration are provided at the conference registration site. For people in developing countries, it may be cheaper to signup for ACM membership ($17) and then register at ACM Member rates.