If you want to tweet more than 140 characters, twextra is a free service that will help you to sent large tweets. It is very simply interface and easy to use anybody. You can easily share your messages in twitter and linkedin.
To start your tweets simply go to twextra web site and type your message. It provides you rich text capabilities i.e. you can bold, colour, links, etc. in your text. You can also add images into your message. It provides all the important options like Microsoft word. After create your message select your social media i.e twitter or linkedin finally click “Post Message” button then the message will post in your twitter or linkedin page.