This document provides tips for creating free presentations using PowerPoint or OpenOffice and sharing them on blogs through SlideShare.net. It recommends keeping presentations short, between 1-2 minutes, using images and pictures to create interest and further explain text. Presentations should stay on topic, and including several short presentations is better than one long one. SlideShare.net allows uploading presentations and adding audio or video, then embedding the presentation into blog posts to share freely online.