Journal of Informetrics (JOI)上發表的論文經過審查而具有良好模型與資料集合，主旨與資訊科學的基本量化方面有關的論文，範疇包含書目計量(bibliometrics)、科學計量(scientometrics)、網路計量(webometrics、cybermetrics)等廣義的資訊計量研究。最初的5卷裡，包含"letters to the editor"，共計239篇論文，544位作者，每篇論文的平均作者數為2.276，其分布的主題如下表：
論文最多的兩個主題，引用分析(Citation analysis)和h指標(h-Type indices)，便佔有一半以上的論文。
JOI最相近的期刊是Scientometrics，兩者都有相當多關於引用分析的論文。不同在於JOI有較多關於模型-理論(model-theoretic)以及網路議題(networking issue)方面的論文；Scientometrics則包含許多案例研究(case studies)的論文。
以一份相當年輕的期刊來說，JOI具有相當的影響力。利用Journal Citation Reports (JCR)提供的影響係數(impact factor)來觀察，JOI在2009與2010年都有很高的影響係數，在主題是圖書資訊學(Information and Library Science)的所有期刊中列於前三、四名。
將JOI最常引用的30種期刊以及最常被引用的30種期刊彼此間的引用關係，利用Gephi網絡分析軟體的ForceAtlas 2布局演算法繪製成網絡圖，使得彼此有引用關係的期刊在圖形上形成叢集。在JOI上方的期刊叢集是它經常引用的多元領域(multidisciplinary)期刊，右方的叢集是物理學相關期刊，下方是數學和資訊科學相關期刊，左方的期刊則以Research Policy和Research Evaluation為主。
JOI publishes refereed articles on fundamental quantitative aspects of information science. Accepted articles should contain good models and/or fundamental data sets.
The Journal covers the broad field of informetrics, including the field bibliometrics, scientometrics, webometrics and cybermetrics.
Specific topics can be described (non-exhaustively) as follows: informetric laws, modelling generalised bibliographies, aspects of inequality or concentration and diffusion, citation theory, linking theory (in general: social networks, including the Internet, citation and collaboration networks), downloads, indicators, evaluation techniques for scientific output (literature, scientists), evaluation techniques for documentary systems (information retrieval) including ranking theory, digital and classical library management, visualisation and mapping of science (individuals, fields, institutes, topics).
Over the five volumes there are 239 published articles with an average number of authors per article equal to 2.276. Here all articles and “letters to the editor” are taken into account. In total there are 544 (co-)authors.
The topics of these papers are described in Table 3.
We linked only one (main) topic to each paper. So a paper does not fall in two or more categories. Of course, sometimes, a paper could be linked to more than one category (e.g. papers on h-type indices can also deal with citation analysis) but we feel that Table 3 gives a rather accurate topical view.
It is clear that a bit more than 50% of the papers deal with citation analysis and/or h-type indices.
Finally the journal Scientometrics is closest to JOI in that it also publishes mainly on citation analysis. A difference between Scientometrics and JOI is that JOI publishes more model-theoretic papers and papers on networking issues while Scientometrics publishes more case studies.
These are very high numbers, certainly for a young journal. They are the highest for any “metrics” journal in the Journal Citation Reports (JCR) Subject Category Listing “Information and Library Science” (LIS).
The slight decrease of the IF from 2009 to 2010 is also noted by other LIS metrics journals, probably due to the fact that papers on the h-index (and related indices) have reached their maximum in terms of citations.
In fact JOI increased its relative impact from 2009 to 2010 since the value IF = 3.379 ranked JOI fourth out of 66 journals in the LIS Subject Category Listing while the value IF = 3.119 ranked JOI third out of 76 journals in the LIS Subject Category Listing.
The map is produced in Gephi, using the ForceAtlas 2 layout algorithm (http://webatlas.fr/tempshare/ForceAtlas2 Paper.pdf). It positions all journals with respect to the journals that they cite. Journals are mapped out using all of the citation links between them: related journals cluster together as they cite one another more frequently. Journals are selected for the map by virtue of being among the top 30 journals that JOI cites or the top 30 journals citing JOI in the mentioned period.
In this map, JOI sits in the centre with a core of informetrics journals, with branches leading to different clusters of research.
At the top are the large multidisciplinary journals (mainly cited by JOI rather than citing it); at the right, a group of physics journals with “Physics World” acting as a bridge from the informetrics journals. At the bottom of the map are mathematical and information science journals and at the left are “Research Policy” and “Research Evaluation”.
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