At the top of your wiki you will see a several links including: Home, Discussion Forum, What's New, Members, and Invite. Click on 'What's New' to view recent site activity:
What's in Updates?
Dashboard - An overview of recent site activity.
Pages
New Pages - View any recent pages that have been added to your site.
Most Active Pages - In order of most active, this will list the pages that have undergone the most changes, such as edits, additions and comments.
Recently Updated Pages - This will show which pages have been edited most recently - you should monitor this page every day in your efforts to moderate and edit content.
Uncategorized Pages - On occasion, a page is created from the wrong area and is left without a category. In the beginning, the "About Us" page should be the only one that is un-categorized. Keep an eye on this section's activity so you can move any recently added pages that are floating around without a category.
Deleted Pages - In order of most recent, this area lists any pages that have been deleted, as well as who deleted it and why. A page can only be deleted by a moderator.
Threads - View recently updated threads in the Discussion Forum.You should reply to comments that users post on your site.
Questionable Content - This is a feature that will report pages or threads that contain words or phrases that are potentially inappropriate. You can also access photos or albums that have been flagged as inappropriate by other users.
Attachments - This report lists all of the attachments that have been uploaded on your site.
Linking - Wetpaint has added this feature to tell you what pages need Outbound and Inbound links.
Tags - This report will tell you all of the pages that do not have tags on them.
Watching Site RSS Feeds
Another great way to keep tabs on the changes happening on a site is to use the site RSS feeds. Look for the RSS feed icon In the What's New area of the site. There is a different feed for each sub-area (new pages, page edits, new threads, etc).