I've got a marketing related blog (
http://www.volcanicmarketing.com/mp) that hasn't gained as much traction as I expected it to and I suspect it's been partially because it doesn't have a strong and consistent voice, like say Signal vs Noise does. Digging around online, I came across this interesting article by Steven Covey (author of 7 Habits of Highly Effective People) and posses some really interesting questions that I think can help people start towards refining their voice. If you've got other good resources on crafting/refining/identifying your voice, pls add in the comments.