One of the biggest concerns when you have a WordPress blog is the amount of spam comments you end up with. Fortunately, there are options available for reducing the amount of spam comments you get.
One option is to use the plugin Spam Free WordPress.
To instal a plugin on WordPress, login to your Admin area (dashboard), and select Plugins – Add New. Then type in the name of the plugin you want to use (Spam Free WordPress), and then follow the instructions to instal and activate the plugin.
Another plugin that comes with WordPress is Akismet. A subscription is required to use this plugin, but I found that Spam Free WordPress didn’t seem to be picking up all of the spam comments, so it may be an idea to use Akismet as well.