“If we could read the secret history of our enemies, we should find in each man’s life sorrow and suffering enough to disarm all hostility.” Henry Wadsworth Longfellow
Three important web sites documenting Trigger Warnings to be aware of and support – the titles speak for themselves…

Lauren Hanna’s Book Trigger List
Lauren Hannah writes book reviews & about her personal experience with autism and mental health issues. Unfortunately this book list has not been updated but contains entries up to 2016.
From her blog…
” Because publishers still aren’t putting content warnings in their books, here is a list of (mostly YA) books and possible triggers.”

Does the Dog Die?
Describing itself as a “Crowdsourced emotional spoilers for movies, tv, books and more” this website is a comprehensive list of Trigger warnings for many different types of media.
There is little to indicate who is behind the list but contributions are welcomed.

The Trigger Warnings Database
The database is stored on a Google Docs Spreadsheet – you will need permission to edit. There are currently over 300 titles listed.
Congratulations to those involved in collecting this important information.
All welcome contributions so keep these links handy.
Note: Goodreads has useful information as well it’s but not so easily found.