Scribus is an open source desktop publishing tool that helps you create professionally laid out documents, from simple documents to full blown magazines, corporate brochures or even books. Desktop publishing tools are not a replacement for word processors, instead they give you the freedom to create uniquely designed documents and help you manage large sets of text and graphic content. Scribus is similar to Adobe InDesign or Quarq Xpress and gives you a wide range of tools to layout content in either print or digital media form. Scribus is pretty easy to get to grips with and has good documentaton on the project website. The Scribus 1.3.5 beginners guide is a really handy guide through the workflow of desktop publishing and helps you clearly understand how to create professional looking results.
There are a great range of open source tools out there for creating 2D and 3D graphics, to help you create stunning visuals for your website development or livening up your presentations. Here are some of the most widely used tools.