Nature offers a fresh look on the peer review system:
Who are the peers in peer review? In journals such as Nature, they usually have a PhD and work in a field relevant to the paper under consideration. If they are academics, they may be tenured professors, usually people on a relatively short list of experts who have agreed to review papers. The process is not perfect, yet long experience has shown it to be better than the alternatives.
But now a new kind of peer review is emerging online, outside the scientific community, and it’s worth asking if there are lessons for science. In the Internet age, ‘peer’ is coming to mean everyman more than professional of equal rank.
Perhaps the most dramatic example is Wikipedia, an online encyclopaedia written and edited by more than 100,000 volunteers.
Nature