A Tag is simply a keyword.
All pages and posts on the site have been tagged with hopefully relevant keywords for quicker access to the items of interest.
The list of tags on each page is a “cloud”, so those keywords appearing more than others are in larger type.
In this list, it can be a little confusing where one tag ends and another begins, but two things can aid that:
- most tags begin with a capital letter
- hover your mouse over the word you are interested in and the whole link will be underlined