Andy Malone's blog on the Microsoft Certified Trainer certification is lively and updated on a regular basis. While it's a more personal or professional blog, his weblog is well organized and contains a wealth of information on Microsoft technology and his efforts to train people in the world's most prolific software.

The Train the Trainer blog sponsored by Prepmasters is an excellent blog that focuses on the certification training market. The blog is updated on a regular basis and offers trainers up to the date information on the skills and art of teaching technical subject matter.

The Microsoft Certification Blog is hosted by Microsoft and written by Gerry O'Brien, an expert on both SQL and Developer cetifications offered by Microsoft.