>What are the best replacements (products, services, or just best practices) for Facebook's core utility of sharing photos and updates, and generally staying in

>What are the best replacements (products, services, or just best practices) for Facebook's core utility of sharing photos and updates, and generally staying in touch with family and friends in your network? That we all think of those as Facebook's "core utility" says a lot. I once spoke with a Facebook engineer and learned their primary development area was supporting how certain business owners in certain developing countries use Facebook: as their primary means of being paid for their services. In some places it's common to order delivery via Messenger, then as proof that payment is on the way take a picture of the money transfer receipt and share that picture via Messenger too. That this use of Facebook had never crossed my mind served as a big reminder to me that as an a) first-worlder and b) affluent techie I probably can't fathom 90% of the use that the rest of the world gets out of services that seem to me to be worthless.