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/tdn.com/content/tncms/assets/v3/editorial/f/a1/fa1d4278-8f81-583d-a37e-fc32e3aa019f/5811f74c26056.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.