Best of YouTube is a cool Free app from AppStore which gives you an option to one Tab search for all types of videos you like to watch example Funny, movies, extreme etc. The app comes fro very famouswww.bestofyoutube.com which has all the Top rated Videos of all Genre. All you have to do is install the app on your idevice, select the video you like to share it with Google Buzz, Facebook Twitter and Email.