Takes me straight to the Google Sheet.

You mean the ones whose domain is fbsbx?

It appears that they attempted to share a non-public link from Facebook, or perhaps you have to be a member of the group. I can't follow those links even while logged in.

If the D&D 5E items "Magic Items and Poisons", "Weapons, armor, gear", and "Shops and Gear" are linked to a file that isn't on Facebook, you should fix the link to be at their actual location. If they are stored on Facebook, I recommend their authors make them available somewhere else.

Ah yes some people have shared files directly to the Facebook group via the file share feature.

Ahh. Got it. That explains it and I found the file share on FB there. Now to download them to a computer that has Realm Works on it.

Why can't that stuff be here? I hate the proliferation of places to find content when it should be right here. Am I the only one on the planet who refuses to do social media (well, other than linked-in)?

It's up to the individuals on how they host their content. I can't force them one way or the other and from the discussions we have had some of them are using Facebook to encourage others to join the group and grow the community.

Not saying I agree but these are the facts.

No, I don't trust or use social media at all, either.

Why can't it be here? Well, on some levels, there might be liability for LWD if they don't police the posts to remove items that infringe on Intellectual Property, for one possible reason (not that I believe there are any at this time, but eventually someone will do so out, possibly out of ignorance of the laws, etc.)

No social media for me either.

I use FB for work and have a personal account for family and friends. Otherwise I use social networking as little as possible.

The problem, such as it is, is that the folks you want to convince are the ones that don't come here regularly. If you want them to hear you, you should go on the Facebook Group and (politely and respectfully) ask them to put their things elsewhere.

Alternatively, do the same work yourself, share it somewhere other than Facebook, and accept the issues around duplication of effort.