The best font for a blog largely depends on the audience. A good option is Verdana, which is often considered the best one to use by most designers. Arial has been criticized for being too boring, as it is the default typeface of MS Windows. Lucida Grande is a good option for something that needs to pair well with photos and graphics.
The secret of all SEO writing is to match search intent to keywords. This includes writing titles that not only accurately describe the article, but also reflect what people searching for it will be looking for.
The first thing you need to do when starting a new blog post is come up with a topic. Next, write down all of your thoughts on paper or using another note-taking app like Evernote or Google Docs.