sentences:  Roger McGuinn has used the Internet to continue the folk music tradition since November 1995 by recording a different folk song each month on his Folk Den site.The songs are made available from his Web site, and a selection (with guest vocalists) was released on CD as "Treasures from the Folk Den", which was nominated for a Grammy Award in 2002 for Best Traditional Folk Album.In November 2005, McGuinn released a four-CD box set containing one hundred of his favorite songs from the Folk Den.