Comparable: Camtasia Studio, Expression Encoder, ScreenFlow, BB FlashBack Pro
Screencast-O-Matic is a web application that allows a user to make simple, quick recordings of their computer’s screen without installing software. Users can narrate the video using a microphone or use a webcam to narrate while showing a video of the host. The software allows highlighting a particular portion of the screen or capturing the entire screen. The software then allows you to either download the resulting video or upload it to YouTube.
Screencast-O-Matic is available for free for Mac (10.6 or higher) and Windows, and a Pro license introduces additional features. Free users can take up to a 15 minute video.
Screencast-O-Matic’s power is in its simplicity and portability. It can be really useful when using an unfamiliar computer such as one in a podium of a classroom or lecture hall.
You can access Screencast-O-Matic at www.screencast-o-matic.com.