(3) http://imageshack.us/
Imageshack, this looks like a very good site for showing pictures as what appears on the forum is just a thumbnail which you can click on and go to a bigger picture. If you're not interested in the picture, all you see is a thumbnail, which doesn't take much loading time. I'm not sure if it does GIFs yet. I'll have to see.
Peter Wright ● 7211d6 Comments