We set up a Slack forum, which is structured with a number of Channels (which are like Folders) to help organise the discussions. We were hoping that this would provide a community library of useful documents and information as well as a social chat forum. Sadly, Slack introduced a new business model and the free version now only shows items up to three months old. As time flies (!) information that has been shared disappears quite quickly, and the community information source aspect is basically gone.
The cost for ongoing viewing of all posts in the Slack forum is more than our Committee wants to consider (several thousand $$ pa). We looked at a few alternatives, but they were also pricey. We looked hard at WhatsApp but decided not to go that way either (one big reason is that someone entering the group new cannot see any previously shared documents, so the information library feature doesn’t quite work).
Now we are looking at storing relatively less private and sensitive documents in Google Drive and sharing that link to all residents and owners. Critical, private and sensitive documents will still be held by the Secretary and our strata manager.