Ever since day one, Twitter always counted everything within the text box in its 140 character limit. This meant that if you were replying to someone their user names would eat up part of your 140 characters. Similarly, if you included a URL or uploaded a picture, the link will also take up part of the 140 characters. This is going to change in the coming months. Twitter has announced four changes that should let you get the most out of the 140 characters. First, usernames within a reply tweet won't count towards the characters. This means even if you're replying to one or multiple...
Source: http://www.gsmarena.com/twitter_to_stop_counting_user_names_images_and_links_in_140_characters-news-18398.php
