YouTube videos with subtitles

Step 1
Go to YouTube.com and look for the video you want to have it translated.
Alternatively you can just just enter the video's URL here, in 'Search videos' box above.
Step 2
Edit the URL in the address bar by adding the text "trans" right before youtube.com.
Hit ENTER and you'll be taken to TransYouTube.com.
Step 3
Choose a subtitle from the box in the right.
Enjoy! And don't forget: you can add subtitles yourself instantly.