Steps to properly block comment spam on your WordPress blog:

  1. Activate the Akismet plugin that comes with your blog (located in the Plugins section).  If you don’t have it download it here.
  2. Get an Akismet API key
  3. Go to the Akismet Configuration screen located in the Plugins menu group (left side bar menu in WordPress)
  4. Enter your key and press Update Options

Now your popular blog will be well protected using Akismet. Don’t forget to make sure all comments are moderated or you’re asking for major problems.

Check out these posts too:

  1. 15 Resources for Setting Up an E-Commerce Site with WordPress
  2. Top 30 WordPress Plugins that are actually useful!
  3. Three tips to protect your WordPress installation from Matt Cutts
  4. Turn your WordPress blog into a news site
  5. WordPress 3.0 “Thelonious” Released
  6. 10 Steps To Protect The Admin Area In WordPress
  7. Veign’s Blog updated to WordPress 3.0