Akismet recently announced they now have a new competitor in the war against SPAM. Defensio have a similar approach, with a centralized API that gives a thumbs up or down for a comment, and some added information indicating “spamminess.”

In short (and in their own words) Defensio gives you:

• Stellar Accuracy

  You’ll deal with less spam on your blog, period.

• Easier Spam Management

  Managing your spambox will become dead simple.

• Personalized Filtering

  Your own habits will help make the filter better over time.

• Transparency Through Statistics

  Meaningful stats so that you’ll really know what’s going on.

I will be trying their service on my DEV blog, in the meanwhile – Best of luck, guys!