The American Society of International Law (ASIL) website has an interesting "insight" section which brings to the fore certain issues in international law that have grabbed the headlines in recent times. I found 3 pieces here relevant to the WTO:
1. Cigarettes and Public Health at the WTO: The Appeals of the TBT Labeling Disputes Begin by Tania Voon
While the first two were a detailed analysis of the panel reports covering the Technical Barriers to Trade Agreement, the third was on the traditional anti-dumping rules. Found the insights detailed, lucid and clear.