| opt-in | Marketing initiatives in which a user chooses to participate. For example, an opt-in newsletter requires the user to input an email address in order to opt-in and receive the newsletter. |
| short tail keywords | Search phrases that consist of only one word that are less specific to a searchers context and intent when entering a query. |
| negative seo attack | Unethical and black hat SEO methods used to lower or harm the rankings of a competitor. |
| mindshare | The number of people who think of a specific brand when considering products in the same category. |
| body links | Noun phrase. Hypertext links placed within the main content of a Web page. |
