Linking works by linkbacks and other factors, there are specific organizations that reverse engineer googles alogorithms and there's an entire industry dedicated to hacking who gets listed on the first 1-3 pages of googles search results. AKA you can pay an SEO company to tell you what you need to link to get your webpage/company to float up the list of google results when people google for certain keywords. You have to understand there is big money in exposure.
