In the main hallway at Lewis Elementary we have an LCD panel powered by an iMac that displays school images along with news and announcements. We have been using Keynote to display the images and news and announcements. This has worked pretty well, but the updates have to be done manually and I'm the one that has to do them. I've been looking for a better solution and this past weekend I discovered an interesting piece of software called Tickershock. Tickershock is an Mac OS X application that displays RSS, RDF and Atom news feeds anywhere on your screen in a animated crawl or billboard display. As of today, I've ditched Keynote in favor of Tickershock. The updates are now handled by an RSS feed from a weblog I created for posting to the readerboard. The images are displayed as part of the desktop picture and come from a folder of several hundred images that changes every 5 seconds. Now all I'll need to do is remotely update the pictures every few weeks.