My Obsessions

In the third quarter of last year, Blake Morgan’s songs were played on Pandora some 27,900 times. But the New York-based recording artist and label owner said he made only $1.62 from the popular Internet radio service.

The music discovery service Twitter’s been testing privately for some time is officially here: Visit Twitter #music and you’ll discover a collage of Twitter-bound artists stacked in colorful squares and ranked (by default) according to their popularity via the social networking barometer. Twitter says the service is available now in the U.S., Canada, the U.K., Ireland, Australia and New Zealand, and that more countries will follow.

Amazon is helping Apple celebrate the 10th anniversary of iTunes by gaining momentum on music downloads in the United States. According to a new study released by NPD Group, the market research firm, in 2012 Amazon accounted for 22 percent of paid music downloaded in the United States. This is up from 15 percent in 2011.

The report, “Annual Music Study 2012,” found that Apple still dominates the music download world, with 63 percent of all paid downloads taking place through iTunes.