Definitely you've found yourself in a forum, blog or other online media, with an image saved in Imagehack.
Twitter is called the equivalent of Imagehack yfrog. It is designed by the same creator of the painting, and it provides an easy and easy way to upload images to Twitter.
It may not be easy to use: Indicates the image you want to upload, write a message with the image (optional) and continue to upload and publish the image instantly.
To use it, yfrog you have to have a Twitter account. It offers various benefits to show an upload history, which can be suggested at any time.
Another very interesting option is also the possibility to automatically publish Facebook and MySpace images.
Yfrog becomes one of the best alternatives when uploading images to Twitter.