NIH recently issued a statement on implications of the NIH Public Access Policy.

Points:

• NIH provides 32 billion dollars  in support of biomedical research each year.
• Over 2.4 million articles are now in PubMed Central.
• Every weekday, one half million users access the database, retrieving over 1 million articles.
• An estimated 25% of users are from universities, 17% are from companies, and 40% from the general public.