Classical Music Sales
More than just a few download music sites are encouraging classical music creators to provide music for downloads. eMusic just signed noteworthy independent classical music label to their growing list (they just surpassed 2million downloads). Crucial Music is trying to add to their collection as well. Music.com, Sony, Naxos, Warner Bros all expect classical music to represent between 10-16% of their download revenue and that doesn't even begin to speak of the exposure this means to composers and performers alike.
So, while posting music to your own website might be one way of getting it out there, I strongly encourage all you aspiring composers to start posting your music to other media sites as well. It may not garner enough to pay the mortgage on your home, but the exposure is invaluable!