I created a Javascript (2 actually) to generate a link to a random url, where the url is pulled from the database of urls at UUpdates. If you would like to add a link to a random UU website (UU blog, UUA, UU World, etc.) then follow the instructions for adding a random url here.
Also, please feel free to ask for clarifications or help with the instructions, and feedback for making the instructions more clear are also welcome.