The third special topics issue of Operating Systems Reviews will be related to Self-Organizing Systems and Emin Gun Sirer (egs@cs.cornell.edu) will be the guest editor. For this issue, we seek submissions on all aspects related to self-organization in distributed systems. This includes systems for wide-area, wireless, access-point, ad-hoc or sensor networks. Short overviews of mature projects and experience reports are welcome, as well as papers outlining nascent ideas for new directions, and everything in between. Topics of interest include: - self-organizing applications and services - algorithms for self-organizing infrastructures - principles of self-organizing systems - security in self-organizing systems - robustness, fault-tolerance and self-healing systems - self-organizing systems for anonymous communication - incentives for participants of self-organizing systems - experience with deployed self-organizing systems - new problems and novel contexts for self-organizing systems Papers will be reviewed by the guest editor with the assistance of outside referees. The primary criteria for acceptance consist of broader interest to the systems community, potential consequences for systems builders and clarity of exposition. Position papers are welcome, as are short (1 to 2-page) notes ("rants") on commonly encountered problems with legacy systems or ongoing work that relates to self-organization. This special issue does not have a predefined format or a target number of accepted papers, but there is a soft cap of roughly 84 pages of text devoted to papers. Papers should be double column including figures and tables in standard ACM format and submitted as printable PDF. If you are interested in submitting to this issue of OSR, please send email to egs@cs.cornell.edu with a brief description of your submission by May 1, 2005. The final submission will be due May 15, 2005.