combination. We also compute tag relevance so you can see which tags are most commonly used by LiveJournal users together with given tag. Finally we
spot "Movers and Shakers" - tags which gained dramaticaly other last few days or are quickly loosing their share.
One more fun feature is drawing tag usage frequency other time, for example:
will compare "thanksgiving" and "halloween" tags - as you see halloween seems to be taking larger mind share of LiveJournal users, also people start to get ready for celebration in advance.
Hope this tool will be fun for you to use.