RollingStone: William Ackerman - Includes a biography, discography, photos, links and message board. - http://www.rollingstone.com/artists/williamackerman
All Music Guide: William Ackerman - Includes biography, discography, and reviews. - http://www.allmusic.com/cg/amg.dll?p=amg&sql=Blu7ibkk96akv
Artist Direct: William Ackerman - Brief biography, message board. - http://ubl.artistdirect.com/music/artist/card/0,,395353,00.html
FolkLib Index for William Ackerman - Comprehensive index of links related to the fingerstyle acoustic guitar instrumentalist and founder of Windham Hill Records. - http://www.folklib.net/index/a/ackerman_william.shtml