How to download Youtube videos to your Mac Desktop

There are a lot utilities and tricks available to download those good Youtube videos, here is a short list of the downloaders:

Youtubex.com
An internet site that let you download Youtube videos from an address you provide.

Downloadandsaveyoutubevideos.info
An internet site that let you download Youtube videos from an address you provide.

Javimoya.com
An internet site that let you download Youtube videos from an address you provide. You can find there the Videodownloader, a Firefox Add-on extension.

VideoDownloader
A Firefox Add-ons

VideoDownloader add a small icon on the status bar at the bottom of your firefox window, and a toolbar button. Just click that and download the video you are watching !

Video Downloader allows you to download videos (to your computer) directly (and easily -just one click-) from most video sites.
You can download from:
Angry Alien, Blennus, Blip.tv, Break.com, Dailymotion, Double Agent, eVideoShare, Free Video Blog, Google Video, Grinvi, iFilm, Keiichi Anime Forever, Metacafe, MySpace, MySpace Video Code, Putfile, Totally Crap, vidiLife, vSocial, AnimeEpisodes.Net, Badjojo, Blastro, Bofunk, Bolt, Castpost, CollegeHumor, Current TV, Dachix, Danerd, DailySixer.com, DevilDucky, Double Agent, EVTV1, FindVideos, Hiphopdeal, Kontraband, Lulu TV, Midis.biz, Music.com, MusicVideoCodes.info, Newgrounds, NothingToxic, PcPlanets, Pixparty, PlsThx, Revver, Sharkle, SmitHappens, StreetFire, That Video Site, VideoCodes4U, VideoCodesWorld, VideoCodeZone, Vimeo, Yikers YouTube and ZippyVideos.

* Firefox Firefox: 1.5 – 2.0.0.*

Youtubia.com
An internet site that let you download Youtube videos from an address you provide.

Vidgrab.com
An internet site that let you download Youtube videos from an address you provide.

vixy.net
Let you download Youtube videos and convert them to ipod.

Mediaconverter.org
A nice looking and well organized site that let you download and convert Youtube videos.

Kcoolonline.com
It is a web-based converter which supports 98 video sharing web sites, including YouTube. It has literally zero options, so it’s recommended for those who like to keep it simple.

Easily download YouTube movies via Safari
If you’re using Safari, there’s an easy way to download YouTube videos. Open the page with the movie and press Command-Option-A, which shows the Activity window. If you’re also loading other sites, you’ll see a list of them: scroll until you find the YouTube page and click on the arrow to show details about what is being loaded.

You will certainly notice an element whose size is over 0.5MB (most of the time, over 5MB). Double-click on it (even if it is still loading), and Safari will download it. When the download is over, navigate to the file in the Finder (which will probably be called get_video) and add the extension .flv to its name. Now you can play it with VLC or with QuickTime (only if you have Perian installed).

Credits:
Macosxhints.com

Get Tube
It is an OS X application which lets you download video or audio files from YouTube, DailyMotion and Kewego.

Keepvid.com
An internet video download site, that let you get movies from:
Google
Youtuben
Break.com
iFilm
Putfile
Angry Alien
ArtistDirect
Blastro
Blennus
Blip.tv
Bofunk
Bolt
Castpost
Current TV
Dailymotion
DevilDucky
FindVideos
Free Video Blog
Grinvi
grouper
Hiphopdeal
LuluTV
Metacafe
Midis.biz
Music.com
MusicVideoCodes.info
Myspace
MySpace Video Code
Newgrounds
PcPlanets
Pixparty
REVVER
Sharkle
StreetFire
That Video Site
The One Network
VideoCodes4U
VideoCodesWorld
VideoCodeZone
vidiLife
VIDNET.com
Vimeo
vSocial
Web62.com
ZippyVideos

FLVR
FLVR allows you to download Flash video to your Mac. FLVR integrates smoothly into Safari, making it simple to save your favorite movies or clips from within the browser.

FLVR produces iPod-friendly Quicktime videos (MPEG-4), so you can take your favorites with you wherever you go! Best of all, it’s one-click simple.

Downloadyoutubevideos.com
A web site that let you grab videos from a Youtube address you provide.

Credits:
Mashable.com