There is an excellent comparison which fits the idea of link exchanges and the quality of SEO texts. Each chain is only as strong as its weakest link. For this reason anyone wishing to create a certain image should search for others with a similar image. In such cases a link exchange is meaningful. As a site has been found by someone from the desired target group, the latter must be retained. Care should be taken to ensure he remains on site. Link exchanges at eye level; that is the motto of the search engines of tomorrow. In other words, whoever wants to be successful on the Internet should leave link exchanges to the professionals. Of course anyone using a modicum of logic can do this on his own. It is not difficult but it requires both time and knowledge.