Link Spamming

There are some websites and services that will charge a fee to increase the number of backlinks for a site. Some of these websites will disguise themselves as news sites or other commercial sites in order to keep search engines from diminishing the value of the backlinks. Backlink services often will engage in what is called link spamming — placing links on as many websites as possible, no matter what the purpose or quality of those websites is. For example, a computer program can randomly "crawl" the Internet automatically place links on any webpages that allow it to post a comment, even if the link has nothing to do with that webpage. Most search engines will try to prevent these types of backlinks from affecting their search result page rankings.