If youve logged in to YouTube and sent a video to a friends email address, or if you have your YouTube account linked to a Gmail account, we will use this information to help identify your friends who already have YouTube channels.

This feature may make people a lot more fond of YouTube trading music videos and comedy clips with pals promises to be fun. But if, on the other hand, youd rather not have all of your Gmail contacts think coworkers, family members know that you gawk at bikiniclad amateur guitarists, its also possible to opt out. Just sign into YouTube, head to the Privacy section under My Account, and uncheck the Let others find my channel on YouTube if they have my email address box.The You may know these people feature is supposed to launch over the next few weeks, so you should have a bit of time to decide which approach to adopt.