I know about the one in the 30's with Leadbelly, Guithrie, Seeger, Lomax and others. And there was one led by Seeger in the late 50's that culminated with the emergence of the Kingston Trio, Baez, Dylan, Paxton and a whole bunch of singer songwriters from 1958 or so into the early 70's. I think there was one in the late 80's - early 90's with a revival of 60's artists like Dylan and the Grateful Dead and folk inspired groups. I don't know who the contemporary artists were in that period. And since then, has there been a new revoival of folk in this millenium, or are we due for one soon?

Folk never dies. Listen to what Daniel Johnston was doing in his living room in the 80's when everything was about synthesizers. He is that last folkie I signed up for. Beck is good too, in this early pahse with his homemade tapes. Must we look to homemade rap and hip hop of the 90's? I'm listenign top a bit of that too. Lyric. That's what makes the music.

https://www.youtube.com/watch?v=AW2cmIIomac