Micropayments seem the most persuasive model. DoCoMo is the UR-model. iTunes the "less-perfect" US adaptation. Consider ring tone sales the transition tipping point. Next: photos (celeb sighting snaps?). Needed: Micropayment providers who are not telephone companies. (david matthew)

Subscriptions seem to work. People resist micropayment schemes that require a purchase decision with every click. Exploiting user generated content seems effective for some publishers. If you can live on instant noodles, blog away and use AdSense.

A provocation: DRM is a con. The software industry has a 25 year history of failure in trying to implement DRM for its own use. If DRM ever can be made to work, it will help the DRM vendor, not the publisher. See also the paper by HP If Piracy is the Problem, is DRM the Answer? <www.hpl.hp.com/techreports/2003/HPL-2003-110.pdf> (jeff ubois)