I am happy to announce that after a long time struggling with it, the Ms.C. program on Web Science at my University has come to light. It will be on-line, taught in English and with a clear interdisciplinary focus. What is more important is that is a joint effort by several Departments at the University, so the program goes across Faculties, including computing but also business studies and humanities and social sciences in general.
If you want more information on the program (or its associated PhD program) you can access the pages of UAH MediaLab.