Wiki's

Positive:
- Allows for large amounts of student input
- great for group work

Negative:
- Altercation of information in a negative way
- Personalisation of wiki is limited
- embedding of you tube clips, voki's, games ext. is limited

Interesting:
- requires collaboration of students working on the same wiki.
- Teachers can monitor the students accessing and contributing to the wiki

I would use the wiki in two particular ways. The first would be as a discussion board between students on a given topic.and the second as a group exercise for students to collaborate and design a wiki that is informative.