Jing: Take a picture or make a short video of what you see on your computer monitor, then share it instantly via web, email, IM, Twitter or your blog. [Comments: We've found this useful for quick videos to answer reference questions. You can even make a useful video without sound. It can be helpful to use the middle or "restore down" button on your browser before you create your screencapture. This will give you a smaller area to capture and will make it easier to view your video on mobile devices and different computer monitors.] For Macs and PCs.
Prezi: With Prezi, you can create presentations on a single "canvas" rather than individual slides that lets you include zooming, images, and multimedia objects. Prezi Desktop can be installed on your PC, Mac or Linux computer, and you can store files locally or upload them to your account on Prezi.com. Some Prezi accounts are free, others (with more options) are not. Here's a link to a UM handout from Chase Masters. Note: Prezis are not ADA compliant and cannot currently be made compliant.
Camtasia Studio/Camtasia for Mac: Capture full screen, window or region of your computer, add in music tracks, microphone, your computer's audio, plus picture-in-picture with your video camera, and edit, adding zooms & callouts, add title clips and transitions, and other media to easily create a polished video.
Captivate: On PCs and Macs, create videos and add software demonstrations, interactive simulations, branching scenarios, and quizzes to your courseware without programming. [Comments: The main difference between Camtasia and Captivate lies in the way videos are created: instead of one video (Camtasia), each Captivate video is composed of individual slides. Some people feel that this gives them more control and makes editing easier, but it does also result in a much larger file, which can lead to problems in storage. If you want to use quizzing, especially going beyond simple Yes/No answers, Captivate is what you want: its quizzing function is quite sophisticated.]
Screenflow: Capture the contents of your entire monitor at the same time as you capture your video camera, microphone and computer's audio. Editing tools enable you to create screencasts quickly, in a QuickTime or Windows Media movie, ready for publishing to your Web site or blog. For Macs only.
For more tools, see the articles listed on the left.