In a recent blog entry, Matt Kats, head of the Google Webspam working group, raised the issue of paid advertising links on search engine pages and blogs.
Kats noted that many sites are trying to hide advertising links that are not related to the content of the web page using CSS, and cited as an example such a code that hides a link to a pornographic Internet resource.
Frequently, the paid links are not hidden, but Cats is convinced that, following the rules of honest business, site administrators must explicitly inform users that the ads being shown are not related to the topic of the search query and the content of the page as a whole. In addition, special attributes informing about this and automatic aggregators and indexers should be used. ')
Kats also mentioned the so-called “sponsorship” themes for WordPress-based blogs. When you design a blog using similar topics on the words in blog posts, links to the sponsor’s website are established, which complicates the correct indexing of online diaries to the Google search engine, since the number of links to some pages increases many times over. A colleague of Cats, Matt Moulinweg, compared similar advertising techniques with the free provision of T-shirts to users with the company's logo. The more people wear T-shirts, the more popular the firm becomes.
As a result, Cats encouraged readers to report on paid advertising links, since information from users will help create more efficient algorithms for filtering such advertisements. It is worth noting, however, that Google itself has not yet announced plans to tighten filtering of paid links, reports ArsTechnica.