[Cammagno]

Originally Posted by Silveras

A lot of that becomes "whatever you want to put there".

So, Sources. As a recent debate here went, some people want to group their content "by book", and others don't. A Source, in my opinion, is best used as a "root" topic to hold content you want to export together for re-import into a working Realm. When there are multiple books (MM1, MM2, MM3, etc.), it sometimes makes more sense to just have "Monsters" as a root topic, and to ignore the MM1, MM2, MM3, etc. -- that way, all the grouped monsters (ex. Demons, Devils, Angels, etc.) that have one or two entries in each book are now combined.

I find Relationships very useful to add even more flexibility. For example in this case, one could choose to have "Monsters" as a root topic, but instead of ignoring MM1, MM2, MM3, he can set a Relationhip for each monster to its specific MM source.