Google+ – learn to verify authorship of your articles; get the Google +1 button on your posts; and use Google+ to develop relationships. Learn how Google Search Plus changes the search engine – set up your articles so you benefit.
Related Posts can be created with a plugin or with PHP code. You can also use HTML and CSS code to create unique related posts. In this article, learn the HTML and CSS code to create Related Posts.
WordPress SEO by Yoast has handy tools for search engine optimization, such as focus keyword and SEO Title fields. NextGen Gallery is great for managing, uploading, sorting and displaying images.