Next on my list of favorite blogs is one by Arlene Eakle, PhD. If you ever get a chance to take a class from Arlene I would most strongly recommend it. Although, I must warn you that many times you may come away hoping to remember half of the wonderful information that she has just rolling of her tongue like it she has known it from birth. She has contributed to so many different books on such a variety of topics that it would make your head spin.
Her blog - Arlene Eakles Genealogy Blog is a combination of her experiences while doing client research, along with hints, tips and essays on research skills and case studies that she has encountered along the way. Her blog is also a very good way to keep track of where she is speaking next so that you can attend her presentations and soak up her wisdom and insights. This is one doctor you don't want to avoid with an apple-a-day!