Microblogs are a specific type of social media that allow users to exchange small elements of content such as short sentences, individual images, or video links. A definition and history of microblogging are given and various characteristics (ambient awareness, push‐push‐pull communication, virtual exhibitionism and voyeurism) and applications (communications preparation, communications, communications control) of microblogs are discussed in the context of marketing applications together with a review of several trends in microblogging.