Snarl - Snarl is a notification system for Windows.
NetSupport School - NetSupport School supports a teacher with a wealth of dedicated assessment, monitoring, collaboration and control features.
Notify OSD - Canonicals on-screen-display notification agent, implementing the freedesktop.
SmartMedia Pro - Smartmedia Pro Classroom Management Software allows remote-control of classrooms and virtual classroom management.
Notifu - Notifu, a free open source pop-up balloon utility
Class Charts - Class Charts is super fast behaviour management software, creating school seating plans in seconds.