Links
Links are important from a SEO standpoint. Ideally you want sites to link to you without you having to link back to them.
Link exchanges were created because of the knowledge that the number of quality sites that link to your site improves your search engine rankings. What is a quality site? A quality site is one that is in the same field or business as your site. In other words, if your site is focused on hardware, search engines would frown on links to ladies dresses.
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