Twitter is a social networking and microblogging service. Twitter allows users to post short messages (140 characters or fewer) that are displayed on the profiles of other users who subscribe to those messages. A Twitter user can "follow" other users, and receive automated updates via SMS whenever one of those users makes a new post.
Topics related to Twitter may include best practices, customer support, and company profiles. Additional topics related to Twitter may include social media strategy, hashtags, influencer marketing, the development of the platform itself as a technology stack or protocol, as well as safety concerns and privacy issues.