The EU has released the Digital Economy and Society Index (DESI), which gathers together more than 30 indicators ranking European nations according to themes such as Connectivity, Human Capital, Use of Internet, Integration of Digital Technology and Digital Public Services. The website has good data visualizations as well as country reports and information about the methodology used.
A related index is The World Economic Forum’s Networked Readiness Index. It measures how well an economy is using information and communications technologies to boost competitiveness and well-being. Consult the methodology used and indicators to get the full facts on what is being measured.