joining your wiki and blog legally

This is sort of like putting the lime in the coconut and shaking it all up. We are going to put your wiki in your blog and visa versa. When Carol first told me that Jack explained his wiki to her, I asked if this were legal. Now that I'm working through this, I can't say that I really know the answer to this yet. I still think that Jacks wiki should be kept a private matter. I as a parent would be concerned if my daughter came home and said that she was working with her teachers wiki. Jack keeps assuring us that this is legal but I am a bit concerned about putting my blog in my wiki. How did a word that was made up in 1949 meaning FAST ever get into computers in 2007???