What are some alternatives?
When comparing iCalamus and Scribus, you can also consider the following products
Zmags - Zmags provides solutions create and publish web experiences instantly.
Adobe InDesign - Adobe InDesign is a desktop publishing software application.
Adobe FrameMaker - A desktop publishing (DTP) and word processing application that is popular for large documents.
Microsoft Publisher - Microsoft Publisher is an entry-level desktop publishing solution.
Readymag - Readymag is a comprehensive solution that allows you to design web publication, magazines, presentations, websites, and all the other publications.
QuarkXPress - Design and layout tool for print and digital publishing