The Congressional Research Service (CRS) is a nonpartisan service that provides Congress with exclusive reports on a wide range of issues and is often called the 'think tank' of Congress. The budget is approximately $100 million of taxpayer money yet the American public cannot access these reports without writing their member of Congress or hoping to find it online.
CRS researches and writes their reports based on requests from congressional lawmakers and their staff. The reports often cover hot topics in the news and are a thorough resource that should be available to public.
OpenCRS is a project that serves as an online public collection of many CRS reports. Sunlight has funded OpenCRS in the past.