The reliance on facebook where I live now in Denmark is disgusting. I lived in SV for 4 years, and basically any information of importance reached me by word-of-mouth or mailing list. Craigslist is also used and awesome.

Worst is that information meant for public dissemination, like training times or open event details, are now de facto private and require login. I've gone from logging in once every 3 months to once a week. AND messenger on mobile requires mbasic.facebook.com. /rant