Blogger has a new comment moderation feature that I have implemented. The plus side is that spam will no longer get through. The down side is that a user’s comment will not appear immediately unless s/he is a member of Our Thoughts. Usually, I am pretty quick with moderation, but when I am out or asleep, your message will not appear for a few hours.
It’s not a perfect system, but I think it is less intrusive than word verification.