They might be useful for a self-check to see what kind of skills you've got, or might need to brush up on. I'm not sure I'd actually put it on my resume as a certification, but it's something that could be mentioned in an interview when asked what you do to keep your skils current.
You might also check to see if you have a local chapter of QAI near you and go to their monthly meetings to hear about new ideas, and meet people in the industry. http://qaiusa.com/chapters.html
Is anyone familiar with the courses offered by the "Online training design group" (interfacedesign.com)?
Would you recommend their courses? If you have taken the course(s), did you find the course(s) effective?
Or do you know of other software testing - online training courses?
Note: I'm not looking for automation training courses. I'm interested in topics such as writing effective test plans, risk driven testing.