Content spamming is the act of taking and using content from other websites that have top search engine rankings. It can be made using utility software such as Articlebot to mix up the content so as not to be detected by plagiarism software.

The new content is further used as part of a doorway page to attract search engine bots. It is also used to serve as a fertile ground to attract more web visitors for the reason that the page using the spammed content has a high probability of ranking well in the SERPs. In fact, they can also be found on the first page of search engine rankings because they have almost similar content with those pages that rank.

The problem now is that even if you don't employ spamming, you are still susceptible to the accusation of link spam for links you never entertained. This is especially true among bloggers. Fortunately, 'no follow tags' were resorted to. Nonetheless, the tags were found wanting. Others fear that Google will block them for such search engine optimization technique so they resorted to content filtering that include Spam blocking solutions or Web filtering Content-control software. So far, the most famous filter is the Bayesian filter, which is a statistical filter.