Great Downloader easy to use can convert into multiple file formats. Fast and impressive
Video DownloadHelper - Browser extension to download videos from the Web
Doodly - Create your own doodle video in just 60 seconds
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
Animaker - Animaker is an online do-it-yourself (#DIY) animation video maker that brings studio quality presentations within everyone's reach. Animated Videos, Done Right!
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.
Prezi - Welcome to Prezi, the presentation software that uses motion, zoom, and spatial relationships to bring your ideas to life and make you a great presenter.