Alzheimer's. I am thankful that nobody in my blood line has ever gotten it

But the woman that helped my mother has it. She is at mid stage of it and I have a good relation with his daughter in law and son. I am a good listener, but for people who have been there, how useful are online support groups? I am willing to do the research for them in Mexico, and I am 3000 miles, frustrating, so cannot even offer a tad more help than a virtual ear.

No, she is not my mom, but she played a critical role in my life...and even came to my wedding.