Dynamic content is a page designed to display either different information in a different format to different users or to be able to adapt or change presentation based on interaction with the end user.
An example might be a news page that allows users to customise which types of stories interest them or that uses usage information to display the most relevant news to those users first. Another good example would be an interactive map that allows users to zoom and change the information presented – such as Google Maps.
Internet marketers presenting dynamic content need to bear in mind the implications this has for search engines. Often they cannot access the complex data structures that underpin the page (either for complexity or security reasons) and as a result some parts of the site may end up incomplete on their indexes. For certain types of marketing activity static pages with limited dynamic content might be the only practical solution to these limitations.