Harmonization
The alignment of the elements of a brand across geographic regions or product lines.
Hawthorne Effect
The tendency for persons to behave uncharacteristically when they are subjects of research.
Heavy-Up
A higher concentration of advertising in a specific time or season. An example would be increased advertising by toy companies during the holidays.
Hiatus
A planned period of advertising inactivity between bursts of exposure.
Hits
A record a of fulfilled request between a browser and a server. This is different than a page view because a hit can be recorded due to a variety of different actions taken on a web page.
HTML5
The successor to HTML4. HTML5 attempts to reduce the need for third party plug-ins to provide standard and interactive media to users by providing an extensive application development platform. Some of the benefits of HTML5 include video embedding, the ability to render graphics in real time, geolocation features, application caches, and handling vector-based images.
HTTP
Stands for Hypertext Transfer Protocol. HTTP is a network protocol that forms the basis for communication over the World Wide Web.