A think tank conducts research and often makes policy recommendations. Think tanks often have a political perspective (right or left), but may also describe themselves as non partisan. Keep this in mind and evaluate your results!
The Harvard Kennedy School offers a custom Google search of more than 690 think tanks and research centers.
The think tanks in this search were culled from the University of Pennsylvania's "Global Go-To Think Tanks" rating index.
Non-partisan research organizations include:
Elections around the World
This site contains international electoral information, such as dates and party information.
League of Arab States (Arab League)
Political Science Organizations
A mix of blogs and online news sources from non-partisan, left and right perspectives. Warning: The information in these blogs may have varying degrees of accuracy. Use the CRAAP test to evaluate the information you find.
Guardian's Blogs (U.K newspaper)