Help On Drupal Designing Needed... - Posted on Trap17 with no expert replies, so I'm coming here instea

QUOTE (rvalkass)

To add tags and categories to your posts you need to create a vocabulary first. Go into the admin section > Content management > Taxonomy. Click the "Add vocabulary" button. If you want to create a 'free-tagging' vocabulary (ie. you type the tags in for each post when you write it) then call the vocabulary something like "Tags", and give it a description and help text if you want (they don't affect anything, just explain what it does). Then choose which content types you want to be able to put tags on. In the final panel, click the "Tags" option, and the "Required" option if you want to force each post to have tags. Click save, then try to create a new post, and you should see a box somewhere to type tags in.

If you want to create categories as well, where people select from a list of option rather than typing whatever they like then follow the above instructions but don't tick the "Tags" option at the end. You can tick "Multiple select" if you want to allow people to assign a post to multiple categories, or leave it blank if they can only select one. Same goes for "Required". Click save. Then you will need to add terms to your vocabulary (the categories people can select). On the row for your categories, click the "Add terms" link. Create your first category. In the "Settings" panel at the bottom you can choose if a new category has a parent, so you can build up hierarchies of categories (such as Dog, Cat, Fish, Rabbit all having the parent Animals).
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