From StudentWiki

[edit] Comments

Visitors can leave comments on your wiki article's discussion page. A Leave a comment... link is located at the bottom of every article in the Main (default) namespace and at the top of every discussion page in the Talk namespace.

Test out comments here: Talk:Cool Stuff.

[edit] Social Bookmarking

Visitors can link articles to popular social bookmarking sites. This functionality is turned on automatically in every article page in the Main (default) namespace.

To turn it off, use this wiki code

[edit] Google Maps

You can add a Google map to your wiki article. In the article you wish to add a map to, click on edit and then click on the make a map link (found just above the formatting boxes) and follow the instructions!