Blogs or wikis to work English language in the school?
R. Birne (Free Technology for Teachers) recently pointed to five ways to use wikis for teaching-learning purposes:
1. As a digital portfolio of student-created videos.
2. As a place for students to share notes on each unit of study in your courses.
3. As an alternative to textbooks. Work with colleagues in your school or department to create a multimedia reference site for your students. Include YouTube videos that use the "choose your own adventure" model to allow students to pursue areas of interest.
4. As an alternative to textbooks. Have students create reference pages for units of study in your course. When you do this students become responsible to each other for creating accurate and meaningful content that they can refer to when it comes time for assessment.
5. As a place to track, document, and manage on-going community projects.
I would like to suggest having a look to this wonderful Wiki:
Some more wikis to get some more ideas by your own:
Wikis in EFL
Wikis in the TEFL classroom
50 ways to use wikis for a more collaborative and interactive classroom
Or my favourite one! Escola Ruiz Amado English 6th grade