How do I stop receiving ads from Yahoo! on the right side of my page for single men in my area? Creepy ?

on my email list page, an automatic ad pops up with men's faces, the notation 'singles in your area'. To my knowledge, I've never gone to a dating or singles site, so - how do I block these ads from coming up? The smiling faces are starting to creep me out. The dog food ads with big teeth were attention getter's but these singles ads are just creepy.