This document summarizes a study on using different web technologies to engage students' critical thinking abilities in a required writing course. The study found that blogging and a traditional argument essay were most effective, while wikis and in-class writing were least effective. Students enjoyed open-ended projects that allowed choosing genres like videos or blogs. Facebook groups constrained critical thinking due to its structure. Reflective writing provided insights into students' experiences. Technologies that restricted text or were unfamiliar presented barriers to critical thinking.