[lneves]

Back in the day, there was this thing called the "Yellow Pages"! :-)

[komali2]

I believe the yellow pages were typically printed by private companies, often the telephone companies, so in a way Facebook is an apt comparison!

[xigoi]

Did you need an account to read the Yellow Pages?

[lobf]

No, you received piles of them on your doorstep whether you liked it or not.