Look out for "advertorials". I just was browsing through yahoo news and thinking I'd found an interesting article in the side panel. But when I read through the whole thing I realized that it's just advertising, but actually cast in a new form for the internet age:

http://www.howlifeworks.com/health_beauty/Are_Sex_Pheromones_a_True_21st_Century_Love_Potion_729/?AG_ID=719&cid=8088sb3_news_rm