I watch a lot of youtube, and I've been enjoying the opportunity to look for the cracks in youtube's targeted ad algorithms. Although now those cracks look more ravines. It's really clear that my ads are selected because I'm a young adult male. I got tired of seeing ads for beer and energy drinks, so I went into my google profile/account settings and changed my sex to "female" just so I would see different ads.
You wouldn't believe how many ads for cosmetics I've seen now. I even went into my ad settings and specified my interests taking out all health and beauty related interests on the list. I still get the same ads.
Why don't you try it for yourselves? Change your google sex and tell me what kind of ads you get.
Link
Zalcoti
I don't get ads on Youtube anymore.