A recent study, however, suggests that despite this cornucopia, the boom in online research may actually have a "narrowing" effect on scholarship. James Evans, a sociologist at the University of Chicago, analyzed a database of 34 million articles in the sciences, social sciences, and humanities, and determined that as more journal issues came online, new papers referenced a relatively smaller pool of articles, which tended to be more recent, at the expense of older and more obscure work. Overall, Evans says, published research has expanded, due to a proliferation of journals, authors, and conferences. But the paper, which appeared in July in the journal Science, concludes that the Internet's influence is to tighten consensus, posing the risk that good ideas may be ignored and lost - the opposite of the Internet's promise. "Winners are inadvertently picked," says Evans. "It drives out diversity."


