| keyword | The word, words, or phrase that an SEO professional or marketer targets for the purpose of matching and ranking for what users are searching for. The words used on webpages can help search engines determine which pages are the most relevant to show in organic results when a searcher enters a query. Keywords usually represent topics, ideas, or questions. |
| pay per action | This function is like Pay Per Click (PPC) with the exception that publishers are paid only when the click results in an actual conversion. |
| hits algorithm | Hyperlink-Induced Topic Search is a link analysis algorithm that assesses a value not just based on content and inbound links (authorities), but also its outbound links (hubs). |
| piracy algorithm update | an update which targeted websites (excluding Blogspot and YouTube) which had an excessive number of DMCA takedown requests. |
| directory listing | see Citations. |
