Web 2.0 technologies are increasing in popularity, offering huge possibilities, but also bringing new challenges to language learning classes. In the context of ESL and EFL teaching and learning Web 2.0 technologies, specifically blogs and wikis can be used for teaching collaborative process writing. This study investigates previous research on the use of blogs and wikis as tools for collaborative process writing in the context of ESL/EFL classrooms and identifies the advantages and disadvantages of using blogs and wikis for this purpose as well as tries to investigate how their use in ESL/EFL can be organized. The findings show that there are a number of advantages that speak for using blogs and wikis in ESL/EFL teaching and learning. However, there are also disadvantages that can interfere the successful use of blogs and wikis for collaborative process writing. As to possible ways of using blogs and wikis within ESL/EFL context, effective examples of group and pair work were identified.