This paper explores and describes some directions within the field of interfirm networks. The directions correspond to an aggregation of 210 different papers in order to achieve a content trajectory. Papers analyzed are based on a collection from 1961 until July 2002 from a number of databases. The papers where categorized into different categories. The categories used in this paper are as follows: author; year; name of journal; theoretical base; approach in the paper; methods used; unit of analysis in the paper and focus of content. Further the categories are quantified in a number of histograms. The paper also includes an appendix which consists, except from the categories, also a column with some concluding remarks from the paper; proposals for further research and also a quotation in order to enable some kind of validation process for the reader. The findings are mostly descriptive but will reveal some interesting data about common research techniques and approaches used. The main contribution is to reveal and offer a platform for upcoming research within the area of network related research.