European Governments online (lean facts provided by the European Union)
Encyclopedia Britannica Academic Edition online includes supplemental current materials and is an excellent starting point for country (or topic) information.
Elections in Europe: A Data Handbook (2010). Not just data -- for each country, also an essay with political history, and an extensive bibliography. Olin Library Reference JN45.E6 201 Also available as an ebook.Follow this link. Access the book by clicking through the table of contents on the left side of the window. (Pay no attention to the password login on the right side -- this ebook will work from all Cornell IP addresses.) It's possible to print 20-page sections.
Country Reports, Economist Intelligence Unit (The Economist). "In-depth analysis of current political, policy and economic trends with an 18 month outlook." Quarterly and annual statistics, each with at least 150 data points, covering more than 195 countries worldwide, facilitating national comparisons.
See also: Cornell Library European Statistics and Data: Reference Guide for links to national statistical agencies.