What are tags and why should I use them?

Beginners Guide to Meta Tags in SEO and How to Use Them Effectively

Turn off tags

Tag reporting

HTML5 Semantic Tags: What they are and how to use them - Explanation by Jason Barnard of Kalicube

Pardot Tags and why you Should use Them — Arkus, Inc.

How to Use Social Media Tags [Ultimate Guide] INFOGRAPHIC

Implementation and Support

Canonical Tags - Where and When to Use Them

Use tags to organize files on Mac - Apple Support