Tags are used to find fags that meet your interests. It also helps search engines a lot. 

The more relevant tags you add to your presentation, the more ways you will be found.

You find the tags at the end of each fag’s page, in the sidebar widgets (or footer on mobile) and statistics page.

All tags

This is a list of all tags, alphabetically ordered. Hover over a tag to see additional information.

I am creating some structure in the tags. This is work in progress. The first results: