This document provides information about free technology tools that can help teachers. It discusses using RSS feeds to easily keep up with changing web content without revisiting sites. It also mentions social bookmarking tools like Diigo that allow users to bookmark, tag, and annotate web pages. Additional sharing tools mentioned include using RSS feeds to create your own content page and sharing on Twitter or Facebook. The document also discusses using Twitter to build professional networks and engage in continuing professional development. It provides examples of other free tools for creating presentations, visual dictionaries, search engines for different subject areas, collaborating online through Padlet and VoiceThread, and creating digital magazines and infographics.