With the release of WordPress 2.3, tags are now a standard part of all WordPress bogs. However, many new bloggers don’t know the difference between tags and categories so I thought I’d elaborate.
Categories are the different areas of your blog. They are the sections that you want to break your blog into. Categories will continue to gain more and more posts over time as you post on them often. Think of them like the main services or main product categories on a website.
If you have a site all about sports, your categories may be: Football, Baseball, Golf, Basketball and Hockey.
Tags are words or phrases that are specific to individual posts. They are items that will give the post additional exposure. Tags differ from categories as they are words or phrases that are less often used.