International Organizations
European Union: 
  https://europa.eu/european-union/index_en
International Committee of the Red Cross: War &  Law: 
  https://www.icrc.org/en/war-and-law
International Monetary Fund: 
  http://www.imf.org/external/index.htm
International Sea Bes Authority: 
  https://www.isa.org.jm/  
North Atlantic Treaty Organization: 
  http://www.nato.int/
United Nations Commission on Human Rights: 
  http://www.ohchr.org  
United Nations Commission on International Trade Law: http://www.uncitral.org/uncitral/en/about_us.html
United Nations International Law Commission: 
  http://legal.un.org/ilc/
United Nations Security Council: 
  http://www.un.org/en/sc/
United Nations Sustainable Development Knowledge Platform: https://sustainabledevelopment.un.org/
United Nations Treaty Collection: 
  https://treaties.un.org/
World Trade Organization: 
  https://www.wto.org/index.htm
International tribunals, courts, and settlement bodies
CURIA (case law of the European Court of Justice): 
  http://curia.europa.eu  
Documents from the Nuremberg trials (Harvard Law School Library): http://nuremberg.law.harvard.edu/
Extraordinary Chambers in the Court of Cambodia: 
  https://www.eccc.gov.kh/en
HUDOC (case law of the European Court of Human  Rights): 
  http://hudoc.echr.coe.int
Inter-American Court of Human Rights: 
  http://www.corteidh.or.cr/
International Centre for Settlement of Investment  Disputes: 
  https://icsid.worldbank.org/en/
International Court of Justice: 
  http://www.icj-cij.org/homepage/index.php
International Criminal Court: 
  https://www.icc-cpi.int/
International Criminal Tribunal for Rwanda: 
  http://unictr.unmict.org/
International Criminal Tribunal for the former  Yugoslavia: 
  http://www.icty.org/
International Tribunal for the Law of the Sea: 
  https://www.itlos.org/
Permanent Court of Arbitration: 
  https://pca-cpa.org/en/cases/
World Trade Organization Dispute Settlement Body cases: https://www.wto.org/english/tratop_e/dispu_e/find_dispu_cases_e.htm#results
Legal blogs
American Society of International Law Blog: 
  https://www.asil.org/ilib
American Society of International Law Insights: 
  https://www.asil.org/insights
An International Law Blog: 
  https://internationallaw.blog/
Audiovisual Library of International Law: 
  http://www.un.org/law/avl/ (lectures on  various topics can be found here – seems quite useful to me)
Berkeley Journal of International Law Blog: 
  http://berkeleytravaux.com/
Beyond The Hague: 
  https://beyondthehague.com/
EJIL: Talk! (Blog of the European Journal of  International Law): 
  http://www.ejiltalk.org/
ESIL Reflections (European Society of International  Law): 
  http://www.esil-sedi.eu/node/84
International Judicial Monitor: 
  http://www.judicialmonitor.org/summer2016/
International Law Observer: 
  http://www.internationallawobserver.eu/
International Law Reporter: 
  http://ilreports.blogspot.dk/
IntLawGrrl: 
  https://ilg2.org/
Just Security: 
  https://www.justsecurity.org/
Lawfare  Blog: 
  https://www.lawfareblog.com/topic/international-law-loac
Opinio Juris: 
  http://opiniojuris.org/ (with a list of links on the right  hand side to blogs focusing more on the political approach to international  relations)
The Lawyer:
  https://www.thelawyer.com/ (a news source)
.png)