To get one look at how they work, watch the Echo Project wiki's OPML page progress from this to this to this in under 24 hours, with each change documented, identified by user or IP address, and reversible.
Yeah, it's amazing. I've been on Wikis before, but never on one that as fast as the (not)Echo Wiki. The speed is really amazing.
All comments are moderated before publication. These HTML tags are permitted: <p>, <b>, <i>, <a>, and <blockquote>. This site is protected by reCAPTCHA (for which the Google Privacy Policy and Terms of Service apply).