2/5/2009 7:51:21 AM
RE:Categories vs. Tags
I will try to explain the main difference:
The tags are "wild cards" - I mean, when editing document (or creating), usually there is a field where the user can add whatever he/she wants - words, phrases, etc.
Categories are pre-defined and given to be selected so you can e.g. follow some structure. Categories are related to the taxonomy - http://en.wikipedia.org/wiki/Taxonomy.
I hope it makes more sense now.