Supreme Court of the United States Blog
Sponsored by the law firm of Akin Gump, this is the go-to blog to learn about the latest happenings of the SCOTUS. The blog also has commentary, analysis, and links to opinions and oral arguments. If something is useful for your own country on an issue or argument, you can borrow it from here.
Opinio Juris is a forum for informed discussion and lively debate about international law and international relations. A number of issues discussed international humanitarian law, the law of armed conflicts, and crimes against humanity (genocide, etc.).
Breaking Legal News (U.S. and International)
It contains legal news stories on many topics, and includes an International Law page.
American and Some International Lawyer Media
Legal News and Commentary (Findlaw)
Legal News Journal (U.S. and International Current Legal News)
Legal News Post (Lawyers, Legal News)
Legal Planet, a collaboration between UC Berkeley School of Law and UCLA School of Law, provides insight and analysis on energy and environmental law and policy. Comes from a more left-liberal American perspective, but has a sometimes valuable international page, here.