There are tags, taggging of tags, categories, bookmarks, bookmarking categories and on and on and on and on…What does this all mean !#$@?

An easy way to remember the difference between tags vs categories  is to think of categories as broad subjects such as those you would find in a table of contents(macro indexing) whilst tags are those identifiers which are similar to the index of a book(micro indexing).  Categories are broad, tags are narrow in subject.

For the purposes of real estate blogging , categories can be,  for example: