Sumo Radio - Love Dance Music? Love Sumo.
YoutubeMultiDownloader - Just like its name YouTube Multi Downloader, it is an online website for downloading the videos of downloading without using any video download and accelerator.
Recast - Listen to radio stations' playlists with Rdio or Spotify
KeepVid - A free web application that allows you to download videos
Radio.co - For radio people, by radio people.
ShareTube - Watch YouTube, synced with friends.