www.cubeupload.com has the best image hosting for this kind of thing, especially if you take screenshots using Steam, all you have to do is change the number at the end of the file name, for example:
cubeupload/12122012_01[img] - first screenshot you take, the second will be the same but with 02 at the end, as that's how Steam works, so you simply copy and paste 10 times (if you have 10 screenshots) and change the number as you go down, much faster than individual linking. Like:
[img]cubeupload/12122012_01[img]
[img]cubeupload/12122012_02[img]
[img]cubeupload/12122012_03[img]
[img]cubeupload/12122012_04[img]
[img]cubeupload/12122012_05[img]
[img]cubeupload/12122012_06[img]
[img]cubeupload/12122012_07[img] < stopped here
[img]cubeupload/12122012_01[img]
[img]cubeupload/12122012_01[img]
[img]cubeupload/12122012_01[img]
simply change the second _01 to _02 and the 3rd to _03 and so on.
Cubeupload are quite risky at the moment though as they seem to have been going down a lot recently.