The humanities and open access publishing

A recent report from the National Humanities Alliance reports that:

Even learned-society publishers in the humanities and social sciences may be taken aback by just how expensive it is to publish an article in their fields. It cost an average of $9,994 in 2007 to publish an article in one of the eight journals analyzed, compared with an average of $2,670 for STM journal articles.

Makes me wonder how I manage to publish Information Research on a budget of zero!