This paper attempted to explore how Web 2.0 technologies present new opportunities for culturally diverse students. Web 2.0 considered as a new way to the web applications and Internet services. This paper suggested the constructivist theory as theoretical framework, As constructivism has affected the various educational fields throughout the world. The constructivist's learning theory' have included many goals such as: developing higher order critical thinking skills; making the participants active in their own learning; where learners will construct their own knowledge; providing flexible time frame; helping students understand their individual learning styles; interacting with other students to share and reflect as they construct learning meaning and solve problems .in regard, this paper underlines collaborative learning, students' motivation, flexibility, style of learning, and critical thinking as fundamental features of Web 2.0 technologies for teaching and learning especially for learners/students─ regardless their cultural backgrounds.