In this esay i am goin to talk about Facebook and Twitter. Facebook: it is a social service, owned and operated by Facebook inc. As of september of 2013,Facebook has over one billon active users,more than half of whom Facebookon a mobile dedvice you can have: Friends, fans, wall, news feed, fan pages, groups, apps, live chat, likes, photos, videos, text, links, status, pokes, gifts, games, messaging, , classified section, upload and download now in facebook are 1.28 billons(you need to be registred) Twitter is: an an online social networking service and microblogging service that enables it's users to send and read text-based messages of up to 140 characters and have include: tweet, direct messaging, follow people & trending topics, links, photos, videos and retweet.in twitter the users are 500 millons (you need to be registred) In my opinion i prefere Facebook you can put in a publication at the letters you want