Affordable and effective spam control

I had previously turned off new user registration and comments due to the mass volumes of incoming spam and the time it required to deal with it. I happened across this service and gave the free trial a chance and it worked wonderfully. The service was so helpful that I bought a multi-subscription. I am know able to leave my WordPress installs open for registration and comment without having to babysit the spam! I am very happy indeed and would recommend this service to anyone who has a WordPress installation.