How do I get rid of the distasteful ads yahoo is running right now? Particularly singlesnet.com. It's gross!

Some of the advertisements Yahoo is running is very bad. Particularly singlesnet.com . Everytime I open my e-mail, I'm bombarded with pictures of half naked girls. My 5 year old grandson sits with me as I'm doing my computer work. Neither of us wants to see that. How do I get rid of it?