More changes await Twitter users as service tries to grow
![More changes await Twitter users as service tries to grow](http://bloximages.chicago2.vip.townnews.com/bismarcktribune.com/content/tncms/assets/v3/editorial/2/71/27165dc6-70a6-58d9-9eac-0bad51355aea/5811f733da0c6.image.jpg?resize=300%2C200)
NEW YORK (AP) — Twitter users are bound to see changes as the beleaguered service favored by journalists, celebrities, politicians and cranks tries to broaden its appeal and attract advertisers.