Early social media

We were on campus the other day and passed this bulletin board. When I was in college in the 70s, this was where people posted index cards to sell things, find housing, etc. Now it's mostly empty, as most of this takes place online. My husband says we met through the bulletin board because he bought a car through a listing there all those years ago, and the car was located at the apartment complex where we both ended up living and met.