Have the “mega-journals” reached the limits to growth?

« A “mega-journal” is a new type of scientific journal that publishes freely accessible articles, which have been peer reviewed for scientific trustworthiness, but leaves it to the readers to decide which articles are of interest and importance to them. In the wake of the phenomenal success of PLOS ONE, several other publishers have recently started mega-journals. This article presents the evolution of mega-journals since 2010 in terms of article publication rates. The fastest growth seems to have ebbed out at around 35,000 annual articles for the 14 journals combined. Acceptance rates are in the range of 50–70%, and speed of publication is around 3–5 months. Common features in mega-journals are alternative impact metrics, easy reusability of figures and data, post-publication discussions and portable reviews from other journals. »

URL :  Have the “mega-journals” reached the limits to growth?

DOI : https://dx.doi.org/10.7717/peerj.981

Multidimensional Journal Evaluation of PLOS ONE PLOS

« PLOS ONE (formerly PLoS ONE) is an international open access online journal published by the Public Library of Science. The periodical covers all science and medicine categories and has published as many as 28,852 documents from 2007 to 2011. PLOS ONE will be used to show the range of journal metrics and informetric methods regarding validity, practicability and informative value. To assess this data as specifically as possible and to address all relevant factors, the evaluation is split into five dimensions, each of which involves distinct metrics. The five dimensions are journal output, journal content, journal perception, journal citations and journal management. Each of them is pointed out in the process of the analyses, and all significant evaluation results are presented. The results show that PLOS ONE has experienced an enormous development. Because of a relatively low rejection rate of 31%, its openness towards a multitude of different research areas, an internationally large peer review community, and its open access, a plurality of documents can be published in comparison with a print-journal or other online periodicals. The results of the evaluation indicate that PLOS ONE should be assessed from numerous perspectives because there are a variety of indicators beyond the impact factor that can be made use of in order to evaluate exhaustively the standing of the journal as well as its prestige and impact. »

URL : http://www.degruyter.com/view/j/libr.2013.63.issue-4/libri-2013-0021/libri-2013-0021.xml?format=INT