CQ Researcher is a complete source for in-depth, analytical reporting on the most current and controversial issues of the day. Focusing on one topic, each weekly CQ Researcher provides extensive background information and discussion of the pros and cons.
Academic Search Complete provides full-text for 9000 journals, including more than 7850 peer-reviewed journals. It also offers indexing and abstracts for more than 13,780 journals.
USA.gov Use the search box on USA.gov to determine which federal government agencies are players in scientific policy debate. From those agency websites one can glean background information on topics.