Every story will need a category. Most stories will only have one category. Categories are often the subject of the post. They may themselves be sub-categories of a wider title – so, you might have a category for sport and then sub-categories for football, cricket, tennis etc.
You, or your web developer, can use the categories to make the menu system work – so that the sport menu button will show all the stories in all the sub-categories but the cricket menu button will show only the cricket stories. The menu at the top of this site is created entirely using categories.
As a writer you will have to choose a category for each post.
Tags are key words, terms and proper nouns that appear in each story but also appear in other stories. They enable the reader to click on the tag and see all the other stories/posts that have the same tag. So if you tag a person named in the story, clicking on that tag would show all the other stories in which that person was tagged.
When you start a website, or you start a story about a new subject, you might not have a tab for a specific term or proper noun – often web editors wait until you have three stories that could have that tag added and then you go back and add them to the existing posts.
Sometimes, authors can only use existing tags and not create new ones, so if you wrote three stories in quick succession and needed a new tag, you’d need to request that one be created and, once it had been created, go back and add that tag to your three stories.
Each post will usually have at least five tags