| 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. |
| outbound links | Links on a particular web page leading to other web pages, whether they are within the same web site or other web sites. |
| crawl error | An error that occurs while a search engine is exploring your website. |
| firefox | A popular free, cross-platform, graphical web browser developed by the Mozilla Foundation and volunteers. As of September 2006, estimates suggest that Firefoxs usage share is around 12% of overall browser usage. |
| hosting migration | The process of switching from one hosting provider to another. |