The "know" tool is a simple module that drops in a one-line always-changing link on any web page, thus providing some changing content (new with every load of the page). The content is of the form-- What do you know about topic? --where topic is what forever changes (it is selected randomly from over a million possibilities). The line is a click-on link to the corresponding article in the Omniknow online encyclopedia. The page opens in a new window, so your visitors are not hijacked away from your site. This tool has now been modified to accomodate changes in the index structure of the Omniknow site; you must use this new version to get reliable results. You can get more information, and see an example of the tool in use, at: http://seo-toys.com/omniknow-topic/know-toy.shtml