Research Institutes & Data and Statistics plus Fact Checkers
Core - harvests and aggregates open source research data; currently contains 135,539,113 open access articles, from over tens of thousands of journals, collected from 9,643 data providers around the world.
OpenDemocracy publishes high quality news analysis, debates and blogs about the world and the way we govern ourselves. We are not about any one set of issues, but about principles and the arguments and debates about those principles.
Pew Research Center - conducts public opinion polling, demographic research, media content analysis and other empirical social science research. Datasets and articles based on the research are available. Topics include U.S. Politics & Policy, Journalism & Media, Internet & Technology and Global Attitudes & Trends.
ProPublica - news site that aims to produce investigative journalism in the public interest.
Statista - data and statistics website with global information on a wide variety of facts and topics
All Sides - there's no such thing as unbiased news, however, this source tries to find balanced (centered) sources and information on top news stories
Politifact (the Poynter Institute)