Free reference content from Thomson Gale

Many of you may be familiar with the generosity of Thomson Gale in the form of the free reference materials (biographies, activities, timelines, etc.) they make available on their site for a number of topics. However, several other Gale reference books appear to be available now on the web for free, in an interesting new format that appears to be supported by Google AdWords advertising, but which also invites users to add comments or additions to the reference articles. The works Luke Rosenberger Has Spotted so far include an impressive list or sources.