Brough Turner has a blog about "technology, economic and social issues of communications at the intersection of telecom, mobility and the Internet". 

In one post, he quotes from an O'Reilly summary of Dan Bricklin's paper: The Cornucopia of the Commons as follows:

There are three ways to create a collective work: 1. Pay people. 2. Get volunteers. 3. Architect your product in such a way that people create collective value by pursuing their individual self-interest. By way of example, Yahoo! built their directory using method 1. Many open source projects as well as shared content projects like Wikipedia use method 2. But many of the great successes of the Internet age have discovered method 3.

Brough proposes method 3 as the way to accumulate large speech corpora.  That is, to provide ways for people to contribute while pursuing their individual self-interest.

This is definitely an approach we will need to look into, once the VoxForge User Submission system is cleaned up.

Ken 

--- (Edited on 2/ 5/2007 9:50 pm [GMT-0500] by kmaclean) ---