Sonia at Copyblogger posted a great reminder for both the current blogger and soon-to-be blogger alike: Why Should Anyone Read Your Blog? 

Aside from the astonishing stats that there are more than 133 million blogs available today and more than 900k blog posts posted a day, there is the equally astonishing yet simple message that you still gotta write something worth reading. 

The points are good, and here are mine that I too easily ignore or forget:

1. Narrow your focus, and your audience. When there’s over 10 blog posts going live every second, let blogs do what they do best: find an otherwise hard-to-find audience, and stay in touch with them. 
2. Keep in mind what style of blog you’ve got going. Seth’s blog is made up of quick, devotional-type thought-starters. Scoble is keeping his hand on the pulse. I try to look at MarketingInProgress as my own newspaper column focusing on the rapidly evolving field of marketing. Regardless, don’t try to be what you aren’t, even though a different approach seems to get more action. 
3. Limit the link bait. Yes, linking is an important and beneficial part of blogging, but don’t overdo it.