Tags are a more modern replacement for the categories we used to offer on our blog and podcasts.
The nice thing about tags is the visual representation they offer. Not only do they list the categories that posts and episodes have been categorized under, but they change in size based upon the frequency with which they have been used. The bigger tags have more posts attached to them.
Please note that these tags are links. If you click on them, they will produce a list of all the posts that have been categorized by them.
Lastly, in the site resources block you'll find a link to "site tags." These are all the tags used throughout the site, including our blogs and podcasts. On the blog and podcast pages, you'll find tags specifically used in those areas.
