From the Vegetarian Advocate (1848), the Vegetarian Messenger (1851-1859), and other sound or video bites. Links active at time of posting.

Raw Veganism by Carlo Alvaro. Audiobook Preview.
Cowspiracy - The Movie. Video.
Forks Over Knives - The Movie. Video.
Is there moral justification to eat meat? Video.
Gardeners and ecosystem engineering. Audio.
Eating Our Way to Extinction. Full Film.
Animal Slaughter Counter and More.
No BS vegan athlete Karina Inkster talks to Prof. Tague HERE.
"Veganism is a Scam." Video.
Master Thich Nhat Hanh, "Why Everyone Should Be Vegan." Video.
Speak the Word - Lyrics and Music by Vaneshran Arumugam. Music.
Vegetarian Advocate, "London, D.G." Audio.
A Plea for Vegetarianism and Other Essays (1886), by Henry Salt. Book. Audio.
From John Yunker at Ashland Creek Press, Veganish. Video.
Vegetarian Advocate, "Punch." Audio.
Animal memorial photography by Dr. Amanda Stronza. Video.
Isabel Rimanoczy's Sustainability Mindset Principles. Video.
Vegetarian Movement, "1847 Conference." Audio.
Joaquin Phoenix reflects on rescuing a mother cow and her infant. Video.
Charles Darwin on the importance of worms. Video.
Vegetarian Movement, "Deaths of Wilson and Wright." Audio.
GUNDA, a film by Victor Kosakovsky. Trailer. Video.
Dr. Jennifer Verdolin talks to Gregory Tague on his book, An Ape Ethic here.
Vegetarian Messenger, "Ox and Bull." Audio.
Animal Morphing Friends by Karolina Jacks-Tague. Animation.
Vegetarian Messenger, "Sharp's Alley, London." Audio.
"It's All About Food" - Interview of Gregory F. Tague by Caryn Hartglass. Audio.