Twitter has revoked access to three services that automatically add or remove followers from users accounts. ManageFlitter, Statusbrew, and Crowdfire have had their access to the Twitter API revoked for allegedly helping users abuse the service. Twitter reserves the right to rate limit, suspend, or terminate developers access to its API if it believes they have violated its automation rules. The apps attempt to boost the number of Twitter followers an account has by following a large number, waiting a few days, and then unfollowing any who do no return the favour by following back.”]

