Why use blogs or Wikis?
1. to give students a chance to express themselves in English to each other / the teacher/ another class/ an online audience
2. to provide students with extra-class support such as details of/ links to class work and homework
3. to provide students with some additional online tasks to do in or out of class
4. as a means of internal communication amongst colleagues – e.g. sharing INSETT sessions/ interesting articles
Which should I use - Blog or Wiki?
Use a Blog to send out information and attract reactions to it in the form of comments. A "tutor" blog in which the teacher gives extra support to students is a good example of this. See The Rome EFL Blog.
Use a Wiki to encourage collaborative writing, in which a single text can be edited by many people. The teacher can intervene at any stage in the process. See "English for Engineering, Kuwait University", by Buthaina Al-Othman. Choose 'English 123 Spring 2008' in the left-hand column.
Another example, using the 'PbWiki' site at Princeton, is the Book Lovers’ Wiki.
There is some overlap. A Blog 'owner', like a Wiki 'owner', can invite people to become editors and thus add and edit posts (you're reading a post now) instead of merely adding comments. A good example is The British Council Hub, created by Mark Appleby at the British Council Porto.
Fora (forums)
These are more like online notice boards in which messages are organised into threads, with replies displayed in proximity to the original message. All posts in a thread can be visible at once. An example is Mark Appleby’s Hub Forum in Porto. Another example is The Friday Blog, a forum set uplastautumn by a student of mine, Francesca, which has been used to post writing assignments, with the chance of peer reviews by other students.
General features
You should be able to regulate access to a Wiki, Forum or Blog in various ways. You can decide who can edit or create posts, and who can add comments. You can decide whether the blog or Wiki is visible to the public or not, and whether it can be listed by search engines.
Choose the type of site you want to use, and go to its home page:
Blogger: http://www.blogger.com
Wordpress: http://wordpress.com/
Classpress: http://www.classpress.com/
Wikispaces: http://www.wikispaces.com/
Pbwiki: http://pbwiki.com/
Lefora: http://www.lefora.com/
Some examples of how Blogs are being used in the British Council:
http://fcemasterclass.blogspot.com
http://web.mac.com/colin.hoy/UI2b/welcome.html
In Porto:
http://studentzone.blogspot.com
In Bilbao, Spain:
http://weseeandenjoy.blogspot.com/
http://lovingbilbao.blogspot.com/
http://fcebritishcouncilbilbao.blogspot.com/
In Barcelona, Spain:
http://encouraginglearnerautonomy.blogspot.com/
I hope all this helps. More for you very soon. Do write a Comment with your reaction.
- Mike