I recently gave a presentation at the Central Iowa Drupal User's Group on Metatag in Drupal. Below are the resources from that presentation:
CIDUG-Metatag.key (Apple Keynote file)
Links and Resources from the presentation:
- Metatag module
- Metatag Schema.org module
- About the Open Graph protocol
- Possible way to get alt tag token on D7 is using the image_token_attributes module (untested)
- Looks like I'm not the only one who ran into the token image issue on D8
Video