Comment Spam
Comment Spam refers to useless comments (or trackbacks, or pingbacks) to posts on a blog. These are often irrelevant to the context value of the post. They can contain one or more links to other websites or domains. Spammers use Comment Spam as a medium to get higher page rank for their domains in Google, so that they can sell those domains at a higher price sometime in future or to obtain a high ranking in search results for an existing website.

Spammers are relentless; because there can be substantial money involved, they work hard at their "job." They even build automated tools (robots) to rapidly submit their spam to the same or multiple weblogs. Many webloggers, especially beginners, sometimes feel overwhelmed by Comment Spam.

There are solutions, though, to avoiding Comment Spam. WordPress includes many tools for combating Comment Spam. With a little up front effort, Comment Spam can be manageable, and certainly no reason to give up weblogging.