Here you can subscribe to Youtube channel podcasts and favorites RSS video feeds in FLV and MP4 formats. There is also video format suitable for playing in PSP. You can also download individual Youtube videos in these formats.
YouTube Comment Snob is a Firefox extension that filters out undesirable comments from YouTube comment threads based on criteria such as selling and cpitalization.
VideoDL is a quick AJAX application that allows you to download online video into your computer. It supports top 3 video sites - YouTube, Google Video, and Break.com.
