Social media services Twitter and Snapchat announced this week they are taking on new looks. Both services have far fewer users than Facebook, and are seeking to expand their audiences. Twitter is expanding its message limit to 280 characters for nearly all its users, ending its well-known 140-character limit. And Snapchat, long popular with young people, will make changes in hopes of becoming easier for everyone to use. It has yet to provide details of the changes. Twitter says that 9 percent of tweets written in English reached the 140-character limit. As a result, users had to spend time reworking the wording of tweets. By removing that barrier, Twitter is hoping people will tweet more, increasing the interest of other users. The Associated Press reports that people around the world are talking about the changes to Twitter.