There was a time when copying and pasting the list below into your WordPress installation would protect you from the vast majority of comment and trackback spam out there, however that time has long passed. These days a more adaptive solution like Akismet or one of the other fine comment spam plugins is much better protection against spam on your blog.
These are words that commonly appear in spam comments. You may want to add them to your moderation list. Please read Combating Comment Spam for more spam fighting techniques and tips.
You may copy and paste the following list to the Comment Moderation box in your wp-admin/options-discussions.php page: