| indexing | The storing and organizing of content found during crawling. |
| search algorithm | Most likely referring to Google, the Search Algorithm is the system that determines what sites rank for particular keywords. If you want to get a general idea as to what Google algorithms look for, you can refer to Googles own How Search Works page. |
| odp | (Open Directory Project) See DMOZ. One of the oldest and most comprehensive human-reviewed directories on the web. |
| toolbar pagerank | A toolbar pagerank is a value between 0 and 10, which is assigned by the Google algorithm. This number quantifies the pages importance. However, it is not as reliable as a simple pagerank. Rather, this type of ranking is only updated periodically through the year and is not considered a reliable indicator of status. |
| pop-under | Form of advertising that creates a separate browser window, but places it under the active one so as not to be disruptive. |
