The Directory of Open Access Journals provides free peer-reviewed journals. There are over 15,000 journals available with high quality full research articles. The articles are available in a variety of languages and cover a number of subjects.
Naxos Music Library is a collection of music tracks you can listen to, including the complete Naxos, Marco Polo and Da Capo catalogues including classical music, historical recordings, jazz, world, folk and Chinese music with notes on the works played, composers or artists.
The Encyclopedia of Popular Music covers popular music of all genres and periods from 1900 to the present day, including jazz, country, folk, rap, reggae, techno, musicals, and world music with entries covering popular music genres, trends, styles, record labels, venues, and music festivals.