Prof. Peter Murray-Rust of Cambridge explains why we should ditch PDF in favour of XML and why we should adopt machine indexing and open access repositories. Please read https://lib2.colostate.edu/about/news/2007/openaccess/abstract.html -- Arun http://orcid.org/0000-0002-4398-4658 http://www.researcherid.com/rid/B-9925-2009 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.