Desktop Publishing Tools
Open Office – The leading open-source office software suite for word processing, spreadsheets, presentations, graphics and databases (free)
PDFCreator – Open source desktop application that creates PDFs from any Windows program (free)
Scribus – An open source desktop publishing application that lets you to create professional documents and page lay-outs and then exports them into PDF format (free)
Zoho – A comprehensive suite of online web applications that includes a word processor, spreadsheets, a presentation tool, a wiki editor, an e-mail client, online storage, quiz maker and too many other features to mention (all free for personal use)