Science and medical librarianship blog roundup:

• MassGenomics posted an interesting essay, titled “The Year of the Exome,” about recent advances made in targeted exome sequencing, and the potential of next generation sequencing technologies for identifying the underlying genetics of rare diseases.
• Andrew Sullivan discusses the recent New Yorker article by Jonah Lehrer on the “decline effect”. This unexplained tendency of research results measuring the same phenomena shrinking over time undermines the validity of the scientific method.
• Here’s a wonderful article on using Twitter as an information discovery source. Following smart people in your field on Twitter can lead you quickly and easily to information sources you would not have found on your own.
• Nature Publishing Group launched a new, all open-access journal, Scientific Reports, which will cover all branches of the life sciences as well as physics.