
One of the key features of iPhoto Library Manager is that it will copy a photo's list of keywords when copying the photo from one library to another. However, this only helps for keywords that are actually assigned to one or more of your photos. What if you have a large list of keywords, but some of them aren't actually assigned to any photos in your library? How can you take that keyword list and duplicate it in another library? Here's one technique that utilizes this feature of iPhoto Library Manager:
Now that the photo's been copied and the keywords recreated, you can delete the dummy photo from the destination library. You can also return to the original library and remove all the keywords from the dummy photo, or just delete it if you made a temporary photo for this purpose.
Another similar technique, if you create new libraries fairly often and like to have a standard list of keywords in your libraries, is to create an empty library and use this technique to populate its keyword list, then just keep it around. Whenever you need a new library, instead of creating a blank one, just use the "Duplicate Library" command to duplicate this library, along with the whole keyword list. Now all your new libraries will start out with the same custom keyword list.