Futures - where are we going to work?
Knowledge management seems to offer possibilities for Web literate librarians.
So does consultancy (especially if this means freelance Web work).
People increasingly have more than one job, and library work is often a second household income. Both of these suggest that money is not the only motivation. (see common good above)
Job descriptions may need to be widened to cope with these developments.
Geographic constraints are a limitation (e.g. London house prices are unaffordable once you move out). [Afterthought - couldn’t forward looking authorities employ virtual employees on Web duties who could live well away from their area?]