As Trends in Endocrinology and Metabolism enters its ninth year, the change in volume number also heralds some important changes in the production and distribution of TEM. From January 1998, beginning with this issue, TEM becomes part of the Elsevier Trends Journals imprint. The ETJ stable of journals comprises some of the most highly rated monthly review journals in clinical and biomedical science, including Trends in Neurosciences, Trends in Biochemical Sciences, Immunology Today and Trends in Pharmacological Sciences. Their high impact mix of news, reviews and debate has made these journals indispensible to researchers in academic, clinical and commercial environments, as well as to students and teachers.In line with this philosophy, TEM will expand its portfolio of editorial content styles and features. This will include more regular coverage of conferences and symposia, providing timely summaries of significant advances that have been discussed. Brief reviews and viewpoints will provide updates on recent progress in the field, where novel information has challenged existing paradigms and driven the development of new hypotheses. Where an area of research has thrown up (or has not resolved) recent controversy and conflicting ideas, TEM will debate the issues in pairs of balancing articles in which each protagonist may put forward their own opinions and interpretations, and briefly respond to the opposing viewpoint. Naturally, a core element of TEM will remain the more-balanced and grounded reviews of the `state of the field', providing detailed background and putting recent advances and consolidations in perspective.In line with these aims, next month TEM will produce a focused issue covering the Developmental Aspects of Androgen Excess Disorders. Furthermore, in common with many journals, TEM will be available online through ScienceDirect (http://www.sciencedirect.com)Fig. 1Fig. 1 a major new collection of electronic journals. These changes will allow TEM to better reflect the dynamic nature of the scientific and clinical disciplines of endocrinology and metabolism. Naturally, we welcome any and all comments on these changes and details of how to contact the editorial office are provided herein.Fig. 1View Large Image | Download PowerPoint SlideEditorial and subscription queries should be addressed to: Trends in Endocrinology and Metabolism 68 Hills Road Cambridge UK CB2 1LA Tel. +44 (0) 1223 315961 Fax. +44 (0) 1223 464430 e-mail TEM@elsevier.co.uk