TweetLink is an application which is exclusive to submit a tweet quickly and easily with title and URL of the website that you are currently viewing.
Register corresponding bookmarklet on Safari beforehand, choose it when you’re viewing website you want to tweet.
Copy URL on clipboard with Safari or other application, then run this application.
When you run it with URL written on clipboard, a confirmation screen will be displayed so tap OK button.
The advantage of this method is its availability for users without Safari, but there is a possibility that you cannot extract right title from some website.