Someone started an "old photos of ..." Facebook group for the county where I grew up. It's got roughly 10% of the county population involved (about 3k group members of out 30k) in the first three days.
Those kinds of Groups always start with a bang and then cool relatively quickly but a lot of people have sure had a blast (from the past) with it this week.
The thing that kinda bothers me is realizing that I recognized more stuff in the black & white pics than I did in the color pics