I found this fantastic plugin for creating cloud navigation on wordpress. check it out!
The Ultimate Tag Warrior WordPress Plugin is exactly what it says: the ultimate tag warrior. If you are serious about tags, and using the full version of WordPress, then check out this WordPress Plugin. Developed by Christine Davis, this unrelenting genius and food obsessed diva from New Zealand has created an amazingly powerful tagging tool. It is so sophisticated and complex, even though it is also basically easy, that it is intimidating at first. So take your time. And if you need help, she’s there for you.