I found an interesting post from Problogger about creating better blog posts. His tips include things such as:

Don’t Just Show, Show and Tell: It’s time to get back to show and tell. Blogs offer amazing ways to present multimedia information, but you still have to tell us about it. You must show and tell in order for your point to be fully understood. Words may not do it alone, but a picture is not worth a thousand words when fed through feeds and search engines. You must have the words.

Write Clickable Titles: The keywords you use in your post titles tell potential visitors what your post is about. If they don’t get it, they won’t click it. If they do click, and the content doesn’t match, they won’t be back.

Make Your Point in the First 200 Words: You have less than a second to capture your reader’s attention. If the user on your site, feed, or search engine summary doesn’t “get the point” in the first two or three sentences, you’ve lost them.

Present a Problem, The Solution, and The Results: Don’t present a solution before the reader understands there is a problem. Present the problem, give us the solution, and then lead us through the results and the benefits of the results. When readers follow along with the process, they better understand how it works and why it works for themselves.

Read his whole list of 30 tips here. Although the article is not written for a legal audience, almost all of his tips apply equally to legal blogs.