Here's a really really good article on blogging that is a must read!http://www.clicknewz.com/1993/how-to-write-a-blog-post/
Here's a summary excerpt from her article but I encourage you to read the whole thing. Good stuff!!!
A Quick Recap:
* Do your research, and choose a keyword phrase
* Craft a great title that includes your keyword phrase
* Choose or create images to compliment your topic
* Flesh out your content with an intro, a main point, and conclusion
* Include a strong call-to-action
* Add your signature
* Wrap it up with a well-written P.S.
* Link to related posts, on your blog and others