Peter Murray-Rust writes an open Letter to Cambridge University Press on the subject of PRISM. "The language of PRISM it implies that publishing in Open Access journals (as I do on occasions) is 'junk science'," he writes. "There is much more from PRISM which is both deliberately factually incorrect and misleading and I cannot see how a reputable scholarly organisation such as CUP could be associated with it." Quite so! Briuan Vickery, from BioMed Central, also attacks the veracity of PRISM. "The real goal of PRISM seems to be protecting publishers' perceived entitlement to copyright the research results of authors they publish." Via Peter Suber.