The finding I found most interesting:
A smaller percentage of usability experts work at non-profits than at other kinds of organizations.
A greater percentage of webmasters work at government, non-profit, and school/college jobs than at jobs in other kinds of organizations.
Overall, these findings seem to imply that titles representing a more current (or emerging) understanding of the field are more prevalent at for-profits and start-ups than at non-profits, government agencies, and schools. Put simply, based on this data, for-profit and start-up companies appear to be ahead of the curve in their understanding of the field.