iPod and laptop DJs continue to claim column inches in the US.

A new report looks at the unfolding phenomenon, which is breaking out at bars and clubs across the world.

The trend is catching on from Washington DC to Philadelphia; London to Paris, France.

"It's a reflection of just how portable music has become," reports Associated Press, "and how sharing it with others is becoming easier than ever, partly due to new products aimed at amateur DJs."

It points out that many professional DJs choose to use laptops rather than iPods as part of their set. UK leading DJs Sasha and Pete Tong use G4 PowerBooks running Ableton, for example.

Tong hasn't yet started using a laptop in his DJ set-up, but "intends to", he said. He has however recently released his second-ever "Tongcast" - a podcast with music that's available through iTunes.

The inclusion of music within the transmission required extensive licensing negotiations, he confirmed last week. These negotiations were handled by Universal Music's new media unit.

Apple hasn't yet built support for DJ-needed features such as beat-matching and pitch control into its iPods, but many believe the market wants this.

The phenomenon is also being recognised for offering music lovers a sense of shared identity and control.

Selection remains critical. "You can have the fanciest gadgets and gizmos, but if you don't get your crowd, there will still be nobody on the dance floor," New Yorker Patrick Kowalczyk told the Associated Press.