Tools that help you download videos from YouTube and other video sharing services on the web are old hat, but BenderConverter is a simple-to-use web-based solution with a wide variety of download options.
At BenderConverter you can not only perform the basic conversions available at most conversion sites—like turning a web-based video into an MPEG or AVI file—but you can also download it as an audio file (MP3 and WAV) or a variety of video files like 3GP for phones, MOV, MP4, and WMV. You can even download it converted to an animated GIF or have BenderConverter convert the frames into JPEG images.
Have a favorite web site, bookmarklet, extension, or other tool for grabbing video off the web? Let’s hear about it in the comments.
Windows/Mac/Linux: If you ever have to rip DVDs to your desktop or convert video, 
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