website, sometimes found in comment sections or forums of various websites Viewbots create fake views Bots that buy up higher-demand seats for concerts, particularly by ticket brokers who resell the tickets. These bots run through the purchase process of entertainment event-ticketing sites and obtain better seats by pulling as many seats back as it can. Bots that are used in massively multiplayer online role-playing games to farm for resources that would otherwise take significant time or effort to obtain, which can be a concern for online in-game economies. Bots that increase views for YouTube videos Bots that increase traffic counts on analytics reporting to extract money from advertisers. A study by Comscore found that over half of ads shown across thousands of campaigns between May 2012 and February 2013 were not served to human users. Bots used on internet forums to automatically post inflammatory or nonsensical posts to disrupt the forum and anger users. in 2012, journalist Percy von Lipinski reported that he discovered millions of bots or botted or pinged views at CNN iReport. CNN iReport quietly removed millions of views from the account of iReporter Chris Morrow. It is not known if the ad revenue received by CNN from the fake views was ever returned to the advertisers. The most widely used anti-bot technique is the use of CAPTCHA. Examples of providers include Recaptcha, Minteye, Solve Media and NuCaptcha. However, captchas are not foolproof in preventing bots, as they can often be circumvented by computer character recognition, security holes, and outsourcing captcha solving to cheap laborers. Human interaction with social bots There are two main concerns with bots: clarity and face-to-face support. The cultural background of human beings affects the way they communicate with social bots. Many people believe that bots are vastly less intelligent than humans and so they are not worthy of our respect. Min-Sun Kim proposed five concerns or issues that may arise when communicating with a social robot, and they are avoiding the damage of peoples' feelings, minimizing impositions, disapproval from others, clarity issues, and how effective their messages may come across. People who oppose social robots argue that they also take away from the genuine creations of human relationships. See also Agent-based model (for bot's theory) Botnet Chatbot Comparison of Internet Relay Chat bots Facebook Bots IRC bot Social bot Software agent Software bot Spambot Twitterbot UBot Studio Votebots Web brigades Wikipedia:Bots –