Some major benefits & features of PostNuke are:
Site structure, design, editing, and the submission of site content can be separated for easy administration of material;
Sites are scalable, so many people can contribute to a PostNuke site/community;
PostNuke is the first CMS to be rated as "IBM Server Proven";
Sites are flexible, there are great default features included in PostNuke and these can be easily altered, extended, or modified;
Site development is Open Source (collaberative code) allowing robust, modular, consistent, security- and standards-aware feature-rich software with a number of support options;
Completely Database-Driven Site Engine (ADODB Compliant);
Extendable Through The Use of Third Party Modules;
Powerful Security Module for Multi-level User/Administrator Logins;
Fully Editable and Manageable News, Links, Downloads, FAQ, and Services Sections;
Customizable Layouts - (coming soon);
Dynamic Forum/Poll/Voting Booth for On-The-Spot Results;
News Feed Manager - Access to over 1,000 news feeds;
Banner Ad Manager - Sell Advertising on your site;
Site Statistics indicates Browser & Operating System, Top News and Articles;
Distribute workload using the Users/Administrators Manager;
Easy Install on any Unix including Linux, FreeBSD, MacOSX, Solaris, AIX, SCO, and most Windows operating systems including Win98/NT/2000/XP.