About Open Access and US government research publications.
"Joab Jackson, Science.gov 2.0 plumbs depths of federal data, Government Computer News, June 29, 2004. Excerpt: "The 2-year-old Science.gov portal now can reach 47 million agency pages as well as databases. ... The portal has pointers to an estimated 90 percent of government research, but some areas remain untouched. An agency interested in joining the alliance has to pay $7,500 per year and ensure that its own content is ready for searching."