Vidooly - Get deeper analytics of any YouTube channel or video
CandyLists - Create interest based YouTube feeds
SimilarChannels - Find similar YouTube channels, discover new channels based on your interests, create your own YouTube collections with your favorite channels.
Music Pro - Stream YouTube music
YouTube Trending - Making it easier to find viral videos
Radios.YT - Listen to the best YouTube music livestreams for free, 24/7