The aim of this study was to investigate whether the blog usage made a difference on reflective thinking skills of students and to determine students' view about blog experience. In addition, it is investigated whether the reflective thinking skill is a significant predictor of deep learning approach as one of the learning approaches. Study group consisted of 57 third year students from Department of English Language Teaching. The study was designed pre-post-test, one group design, and explanatory design. The instruments consist of "Towards Problem Based Reflective Thinking Skills Test" (Kizilkaya and Askar, 2009), "Learning Approaches Inventory" (Colak and Fer, 2007) and four question which was prepared to reveal students' view about blog. In the analysis of the data; t-test for related samples, regression analysis and context analysis were used. According to findings of this study, blog usage did not cause a difference on reflective thinking skills and reflective thinking skills were found to be one of the significant predictors of the deep learning approach. Students' views were classified into pozitif, negative, encountered problems and expectations.