Cinemagraphs

Cinemagraph- Appears to be a still image, but a slight aspect will be moving. Regularly created to be gifs.

Term coined by U.S. photographers Kevin Burg and Jamie Beck.
Their work utilises this effect in a lot of fashion photography.
Website: http://cinemagraphs.com

It can be used for adverts
Facebook now lets videos play automatically so gifs are viewable on the website.