This document discusses how blogging and voice commenting can enhance critical thinking skills for ESL students. It defines critical thinking as the process of conceptualizing, applying, analyzing, synthesizing, and evaluating information. Teachers can help improve students' critical thinking through activities like analysis, open-ended questions, and debate. Blogging involves students creating blogs to share experiences and opinions through writing. Voice commenting allows adding audio recordings, like WhatsApp voice messages, as comments on blog posts. Examples of blog platforms and the steps to create a blog are provided. The purpose is to engage students in higher-order thinking through interactive online discussion.