Content is always the best way to promote your site. It could be text, images, graphics or video, there are no limitation about what you can put on your blog, the goal is to make your readers laugh, cry or something that can make people wow.
Google search algorithm update becomes one of the most important things to every webmasters in the world. Every year there are up to 500-600 minor updates in Google search algorithm while major updates only happen few times a year.
Make sure to incorporate title, keyword and description meta tag into every single page on your site. Use keywords and description that relevant to your page.