Internal linking

Google rewards sites with authority and links that relate to each other. Sites like Wikipedia dominate the search engines because they have both of these. Wikipedia has anchor text linking to other of their pages of related topics. For example if you searched "seo" on the page for search engine optimization you will see many hyper linked words relating to your search such as web site, blog, search engines,search engine marketing. Each of these leads to other pages on Wikipedia. This is internal linking and it is why Wikipedia ranks so high in search engines.

When Google and other search engines send their bots to index your site for new content they read your site map and update their databases. Your hyper links leave a trail throughout your site or blog and search engines will give you a higher rank. The hyper links also tells the search engine what your blog or site is about. The same with bolding, underlining, italicizing your keywords.

Make sure it is well written and not overly stuffed with keywords as you'll get penalized by the search engines. If it flows and reads well people will stay and read longer and this will tell the search engines that you have a quality site.

When writing posts find all of the keywords. Bold them so you can find them easily. Use these to make future posts then link to the new posts from them. This will help you come up with ideas for posts. If one of your keywords fits a previous post then link to that. This will take a long time but if you post a few times a week by the end of a year you could have hundreds of internal links and posts.

It can be difficult to track hundreds of links so you'll want to install a plug in that allows you to search keywords and link them to related posts automatically. They can also give you a site map which will make it easier to navigate.