When you think of a blog, what do you think of?

A lot of students new to blogging have a hard time with how blogging is useful in marketing.  I have found that this is mainly because when students think of what a blog is, they think of personal blogs filled with diary-style musings about their personal life or a Tumblr-esque cascade of animated GIFs.

I'd like to make sure you have some good examples of professionals who use blogs to promote their personal brand by creating interesting original content.  

Here are a few blogs about marketing that you should take a look at and learn from.

Logic + Emotion
David Armano, VP at Edelman in NYC, is always posting insightful ideas 

Erika Napoletano
Erika is a copywriter who irreverently writes about marketing, advertising, branding, and business from a unique perspective.

Chris Brogan
Chris is a publisher and business consultant. He helps business owners and marketers get up to speed on what he calls the "personal business revolution".

I'd encourage you to use tools like Google Blog Search to find influential blogs in the topic area(s) surrounding your personal brand.  Set up a blog reading tool like Feedly to check in on them as you would check on news, sports, or Facebook happenings.