If you aren't interested in checking back in the wiki periodically, there are a number of ways you can be notified of changes to content in all or one of the spaces. One way is to set up an RSS Feed using the [FeedBuilder] link on the wiki Dashboard. Here's how I did it.

1. I downloaded an RSS reader. There are lots to choose from. Do a Google Search for RSS reader and pick one. I have used Bloglines, Pluck and now SharpReader. I like ones that sit in my System Tray. (If you have a preference, weigh in with a comment below!)
2. Go to the Dashboard by using the breadcrumbs at the top left of the wiki page. At the bottom of the screen, use the Feedbuilder to identify the specific wiki changes you'd like to track. For example, if you want to follow the changes to the Organization pages, including any comments, select [LearningSpace] in the first box and type in the label "organization." For Step 2, I selected Anonymous and gave the feed a specific name, "Wiki Organization."
3. Click on Create RSS Feed.
4. When the RSS Feed Created page appears, drag the icon onto the Address bar of your feed reader.
5. Most Feedreaders allow you to set the update interval and provide some kind of notification signal (graphic or aural or both) when there is a new item.