For a virtually unknown 16-year-old British ukulele player and singer, Misty Miller already boasts an impressive international following.

The places in the world that know my music? South America, China and Australia, she says with slight astonishment.

Miller knows this by looking at a heatmap generated by a new online tracking tool called Buzzdeck.

Built by the London-based music distributors Artists Without A Label (AWAL), Buzzdeck is an attempt to provide musicians and their managers with a set of insights to help them decide where to target their promotional efforts.

AWAL co-founder Kevin Bacon said Buzzdeck aggregates data from websites such as YouTube, MySpace, Twitter as well as the iTunes music store and companies that track radio plays to present a coherent view of where an artist is gaining traction. Blogs and peer-to-peer networks are also monitored.

We're currently tracking about 70 or 80 data feeds from probably 20 to 25 different sources, says Bacon sitting in an office of London's RAK studios.

The digital distribution arm of AWAL released Miller's four-song Remember album in the summer with very little fanfare.

I had the fear the sales would be in the single units per day or at best in the tens and twenties, says Bacon. What happened was on day one we did about 200, and day two we did 200. We went on and I think we've just hit 6,000 downloads. It wasn't just 'Whoopee, great!' I was able to look into that and learn from it.

Online interest in Miller's music spiked after her song Remember was used in a campaign for the British luxury fashion retailer Burberry.

The number one aspect is figuring out where her audiences are growing and how to introduce her to those audiences more intimately through touring or through media appearances, Miller's manager Anthony Gordon said.

Miller is now readying her first full-length album for release on February 13 through the iTunes music store.

Bacon says demographic data gleaned by Buzzdeck suggests Miller has a diverse following who are responding to her music rather than the marketing.

When we look at YouTube we get that there's a substantial amount of young girls watching her and a fairly high percentage of older blokes, he laughs.

(Editing by Paul Casciato)