Intense advertising

I was looking at my favorites list on my internet browser where I specifically add certain internet sites. At the bottom of the list were two dating sites that were added to my favorites without my knowledge. I was kind of annoyed by this because I felt like they were invading my personal space. I don't think it is a very effective way of advertising because they are two internet sites that I would not be interested in visiting at all. They need a more effective way of picking their target market.