This UN agency is a rich source of data about the Internet—the full catalogue of publications can be found here} (http://www.itu.int/dms_pub/itu-s/opb/gen/S-GEN-CAT.OL-2015-PDF-E.pdf). It publishes its yearly report [ICT Facts and Figures with information on Internet users, access, broadband and mobile, pricing, and speed, plus the Yearbook of Statistics.
This source provides weekly data on websites performance and offers a series of indexes, by industry and by country or region, with information on response time, response rate, and outages. It also produces the Internet Health Report, a real time view of the performance (latency, availability, packet loss) of major US Tier 1 backbones.
This regional registry (RIR) provides data on IPv4, IPv6 and ANSs distribution by year and country in Latin America and the Caribbean.
Legifrance is the official French database of French law, including legislation related to the Internet.
This project of the Berkman Center collects and analyzes complaints about online activity, with a focus on take-down notices.
This joint project of the Berkman Center at Harvard and the Center for Civic Media at MIT collects and stores the content of thousands of online news sources and allows to analysis and exploration by users with tools such as the Media Meter dashboard and focus, the Attention Plotter, and the Controversy Mapper. In addition, it has published a series of papers based in its tools.