Writing an effective blog post for the human visitor and the Search Engines is far from rocket science, but at the same time, there is a pattern you should follow. Here are the SEO-Alien's 8 parts to writing better, more engaging blog posts that will help the human visitor as well as the Search Engines.
How often do you have to post to your Blog to help get your website to the top of the Search Engines and keep it there? The answer that we have always given to this one is quality of the post, not frequency. Learn more from Matt Cutts.