Epitonic is a great site. It's arranged sort of like a really lean indie-focused AMG
, but with tons of audio. The emphasis is on pop/rock and electronic music of all sorts, but there's also some hip-hop, jazz, classical, and neo-folk. Actually, one of the more useful features of the site is a set of audio crash-courses in genre history and fundamentals for all the styles available on the site. They're not perfect, but certainly a strong effort.
The music is usually available in three formats: a brief streaming clip, a full-length stream, and a full-length download. The descriptions are surprisingly evocative, if sometimes overly enthusiastic (but, I suppose, there's not much of a point to having something on the site that you don't think is all that and a bag of chips). There's a weekly newsletter alerting you to the most interesting new (and sometimes just themed) stuff; there's an "Epicenter" which highlights a variety of the best offerings; there's a top downloads area; radio, video, and album stream sections; a search feature; and an Epitonic Black Box (essentially a MyEpitonic), where you can bookmark and organize songs which are available for streaming.
Overall, this is a great way to get into some less mainstream music. Epitonic calls itself "A Site for Sore Ears". I buy that.