Jetée

Some sites like imagehaven.net and imageshack.us, among others, give you an option to either post the thumbnails or the direct link to a picture (sadly, many image-hosting services consider hot-linking a picture a "premium feature", so many do not allow it normally.) The option can usually be found once an upload is finished, near the bottom of the page, where you will see different box-liners that allow you to consider which option (direct, hotlink, or thumbnail) is best suited for you; after that, all you need to do is copy the address code in which they provide for you, and paste it into your post.

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As human beings, our greatness lies not so much in being able to remake the world (that is the myth of the Atomic Age) as in being able to remake ourselves.

—Mohandas K. Gandhi