Imgur makes sharing images with the Internet easy. It can be used to share pictures with friends, as well as post images on message boards and blogs. You can manipulate the image a number of ways and automatically submit it to popular sites such as reddit or digg. You can also view popular user-submitted images in the gallery. Best of all, Imgur is completely free and is the best image host around.
Currently, the following formats are allowed:
JPEG, GIF, PNG, APNG, TIFF, BMP, PDF, XCF
Please note that the TIFF, BMP, PDF and XCF formats will be converted to PNG on upload.