alternatives and websites for download videos

Try them, They are all famous and safe websites for download Youtube as an alternative for one another:

Wantyoutube (http://www.wantyoutube.com/ able to download by adding a word "want")

Youtube downloader

Vixy

Zamzar

keepvid

zillatube

tubegrip

yootoobee

Clipnabber

Saveyoutube / kissyoutube / kickyoutube

Savevid

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Available for Video-sharing Websites:

5min, Break, Current, Dailymotion, Facebook,Google Video, ku6, Megavideo, Megaporn, Metacafe, Myspace, Photobucket, Sina, Spike, Tudou, Veoh, Vimeo, Yahoo Videos, FC2, Yam, Youku, Youtube, Xuite, Xvideos, 56.com

Format Available: 

MP3, MP4, 3GP, WebM, FLV, HD Quality Movie, mobile phone, ipad, iphone, ipad, cellphone, playstation, android, Mac computer, and so on.