| redirection | When a URL is moved from one location to another. Most often, redirection is permanent (301 redirect). |
| blog farm | Noun phrase. A group of blogs operated by a single person or group that are populated by software, usually RSS-feed scraping scripts. Used for link building, blog farms are created by special software that installs popular blogging software on multiple domains and hosting accounts. Sometimes confused with links farms (q.v.). |
| paid search ads | Paid search ads are the pay-per-click (PPC) advertisements that appear with the organic results on SERP. |
| email marketing | A form of online marketing where commercial messages are sent to a group of people using email. |
| citation flow | An SEO metric created by Majestic SEO to quantify the influence of a URL based on the number of sites that link to it. |