Archive of Folk Culture Collections 
From The American Folklife Center, Library of Congress. Information, links to online publications and guides to the collections.
http://lcweb.loc.gov/folklife/archive.htmlArchives of Traditional Music 
General information about the Indiana University Archives, including listings of journal contents and a searchable archive database.
http://www.indiana.edu/~libarchm/
Southern Mosaic 
The John and Ruby Lomax 1939 Southern States Recording Trip is a multi-format ethnographic field collection including nearly 700 sound recordings (102 of which are performed in Spanish), fieldnotes, dust jackets, and other manuscripts documenting a three-month, 6,502 mile trip through the Southern United States collecting folksongs. Includes a virtual journal of the trip, with text, pictures and sound.
http://memory.loc.gov/ammem/lohtml/lohome.html
UCLA Ethnomusicology Archive 
The collection Includes sound recordings of folk, ethnic, and non-western classical music. Includes a selected list of current collections.
http://www.ethnomusic.ucla.edu/archive/
Library African Music 
International Library of African Music with over 40,000 recordings. Includes a searchable index, as well as sound samples of African instruments.
http://ilam.ru.ac.za
Southern Folklife Collection 
These holdings, at the University of North Carolina Chapel Hill, document all forms of Southern musical and oral traditions across the entire spectrum of individual and community expressive arts, as well as mainstream media production. Generally describes the manuscript and sound recording holdings.
http://www.lib.unc.edu/mss/sfc1/
International Music Collections 
The collection at the British Library Includes recordings variously described as traditional, folk or 'world' music. Includes a discography of their published CDs, and a searchable catalog of published and unpublished recordings.
http://www.bl.uk/collections/sound-archive/imc.html
Wesleyan World Music Archives 
Basic information on the collection and staff.
http://www.wesleyan.edu/libr/srhome/srwma.htm
Archive of World Music - International Inventory of Musical Sources 
Collection of commercial and field recordings of ethnic and folk musics, with an emphasis on the musics of Asia and the Middle East. Includes general information on the collection, a collection newsletter, and browsable collection databases.
http://rism.stub.uni-frankfurt.de/index_e.htm
African Music Archive 
A history and general information on the archive at Johannes Gutenburg University, located in Mainz, Germany. The archive publishes NTAMA - The Journal of African Music and Popular Culture. In English and German.
http://ntama.uni-mainz.de/ama/
Ralph Rinzler Folklife Archives and Collections 
The Smithsonian archives house the Moses and Frances Asch collection, consisting of the entirety of Folkways Records, and the Rinzler Archives, consisting of the written, audio, and visual records of projects and exhibits sponsored by the Center for Folklife and Cultural Heritage, including the Smithsonian Folklife Festival. Contains general collections and grant information
http://www.folklife.si.edu/center/archives.html
National Sound Archive International Music Collection 
The British Library National Sound Archive contains lists of world music recordings with RealAudio samples, as well as links to other world music archives in the UK.
http://www.bl.uk/collections/sound-archive/nsa.html
Smithsonian Global Sound 
Digital downloads of music and sound from around the world, including educational content. Includes free previews of content from the Smithsonian/Folkways world music catalogue.
http://www.smithsonianglobalsound.org/
Archives of African American Music and Culture 
Materials held by Indiana University covering various musical idioms and cultural expressions from the post-World War II era. Includes a searchable database and publications listing.
http://www.indiana.edu/~aaamc/
Early American Secular Music and its European Sources 
Searchable index of sources for early American and European music, covering the years from 1589-1839.
http://www.colonialdancing.org/Easmes/