CSC has released Unchartered Waters—The State of Open Data in Europe
Here's an excerpt:
This study analyses the current state of the open data policy ecosystem and open government data offerings in nine European Member States. Since none of the countries studied currently offers a national open data portal, this study compares the statistics offices’ online data offerings. The analysis shows that they fulfill a number of open data principles but that there is still a lot of room for improvement. This study underlines that the development of data catalogues and portals should not be seen as means to an end.