At the behest of Congress, the library produces legal reports on various topics; they “… provide commentary and recommended resources on issues and events. These reports are provided for reference purposes only and do not constitute legal advice.” The reports can be heavily footnoted and links are provided where available. The documents range from Bitcoin practices in forty countries to Japan’s constitutional prohibition against waging war. If you need to research various subjects from a legal viewpoint, you might want to stop at this site.
Law Library of Congress Legal Reports