Scode and comment spam
Scode the first line of defence agent comment spam. The plug-in is already installed on your personal college blog.
If anyone wants to leave a comment on your blog, they have to read the text in the image box (see image below) and retype it in the box called Code(*):. If it's typed in wrong then the comment will not appear on the blog. This is to stop blog spambots filling in comment boxes automatically with unsolicited content. This happens because they cannot read the text contained in an image. You may have seen the same thing when applying online for a personal email account or in other online applications.
Click on image below to enlarge:
As a second line of pest control check out:
Phrase Spam Moderation Plugin
IP Address Moderation plugin