This, for me (in Canada). I now regularly throughout the day check several facebook groups related to my various hobbies. For example a group where serious cyclists from my area are buying/selling parts. Yes, I also check craigslist/kijiji, but the Facebook group is much more responsive, you can ask questions and comment, and I don't have to sift through a bunch of cheap parts I don't want. Also I trust it more because most people are somehow connected.
In fact I hardly ever check my facebook feed anymore, I mostly just go directly to the group I'm interested in.
In fact I hardly ever check my facebook feed anymore, I mostly just go directly to the group I'm interested in.