CiteULike is a free service to help academics to share, store, and organise the academic papers they are reading. When you see a paper on the web that interests you, you can click one button and have it added to your personal library.
wonderfully designed hypertext project on what libraries might mean today, with all those books few people read; a model of a hypertext exploration of an important intellectual topic
one of the largest set of links, updated regularly, to all aspects of communication; many political themes; a wide range of disciplinary approaches included; highly recommended
Books and lessons on music theory.
Interactive exercises for theory and aural training.
You can customize the exercises to meet your needs.
Includes an score editor.