Last month, we wrote a post about authorship and whether you are better using a personal or brand approach. Maybe a more pertinent question is why bother with authorship tagging at all? The simple answer is that increasingly authorship (who has written something) is being used by Google to make decisions on how valuable that content is and where they should rank it in their index. So if Google think it is important then probably we should too! With this in mind, I suggest that this post on E-consultancy: The value of Google Authorship for your content strategy is probably worth reading.