I found an article that seeks to explain how to do this, but I'm not sure where to place the code or what to do.
What I did was create two additional custom taxonomies: location and rating. So each post now has 3 kinds of "tags" which are: Normal Post Tags (topic) Location and Rating.
My tagcloud widget can display a tag cloud of each of these. But what I would like to do is have the tagcloud display all of them. I do not want 3 tag clouds, one for each taxonomy.
How can I put them all in one?