Internal link building is a means of piggybacking on one’s own link equity. You build internal links by linking from pages on your own site. For example: this page’s authority is bolstered by links from other SEO-related pages that live within www.wordstream.com. If you have a large website, you can use a site search to find related content, like so: "site:wordstream.com search term."
Look to link from pages that are already authoritative and high-ranking pages; but be wary that linking too much from these pages can have an adverse effect on their link equity. Once you identify a page, you’ll want to find some anchor text that closely matches your target keyword. Then link away!
External link building is the process of soliciting links to your content from other websites. Who would want to link to your website? Why, people in related industries who could use your informative resources! There are a variety of methods when it comes to building external links, but the general roadmap looks like this: find pages that could use your resource; find the contact information of the authors/webmasters of said pages; kindly invite said authors/webmasters to link to your new and valuable resource.
