| PageRank | As defined by Google "PageRank relies on the uniquely democratic nature of the web … |
| Paid Inclusion | An exchange in which a site owner pays to have pages (or entire sites) … |
| Paid Listings | Directory listings where the results display only advertisers who have paid for inclusion, and … |
| Paid Placement | Any search results program where the order or assuredness of a listing's appearance depends … |
| Paid Placement | Paying for a link to be included on a search results page, usually at … |
| Pay-For-Performance | Same as Pay-Per-Click, but with a positive spin … |
| Pay-Per-Click | See Cost-Per-Click. … |
| Payment gateway | A payment gateway is a service provided by a billing processor, which allows credit … |
| PHP | The PHP Hypertext Preprocessor allows web developers to create dynamic content that interacts with … |
| Poison words | Poison words are words that may have a negative influence on your site's ranking. … |
| Position | Where a listing appears in search results, relative to the first listing. For example, … |
| Precision | The degree in which a search engine lists documents matching a query. The more … |