Are shorter blogs better than long ones?

Are shorter blogs better than long ones?

According to Derek Sorensen here
"Every sentence you write in a blog halves the number of viewers. Attention spans here are short (think goldfish). There again, that's no different from most other networking sites.Every comment doubles the number of viewers."
Is this true?

Mike Morrison
RapidBI.com
+44 0208 2300980
RapidBI Blog
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