It seems obvious, but as the various mediums for communication grow, so do the means for spam (unwanted, needless messages). Today, again, I notice that there is a comment on my blog here, but I noticed that they were nothing but spam.
These used to be more commonplace when dealing with newsgroups and message boards because the concept of blogging was not too popular at that point. Now, blogging seems to account for a large portion of the content on the Internet.
Introducing captcha (a mechanism whereby a user has to enter a specific series of letters or numbers when posting) does help. However, there is a new breed of spammers that effectively hire out the job of spamming to other countries where cheap labor affords the ability to get around captcha mechanisms.
Since this blog has multiple audiences, I feel it is best to keep the unwanted comments out. Therefore, I monitor the comments before they are allowed to be posted. Other than disallowing comments completely, I am not sure if there is a good solution.
