That's OK!When you link out to related domains, it not only helps the search engines to understand your niche, but also helps to increase the trust and quality of your site which plays a vital role in your blog's SEO. The method also experiences the disadvantage of failing to allocate money for special needs or to combat competitive pressures. Every page should have a description that isn't used anywhere else on the site. For those of you wondering, "index" is another name for the database used by a search engine. So "to index" a page is to have it added to that database. In other words, Google has discovered your page.