Someone is spamming my blog

A company is consistently spamming my blog with comments to visit their webpage, so I am closing the ability for non-members to comment. You have to register to be able to comment now. I am pretty sick and tired of people who spam like this, they have no respect whatsoever of other peoples time and need. So if you see a posting that doesnt make sense and links to another site, dont click it or you will be supporting this idiotic spammer!