Hey guys, I know this might be old, but I figured I would bring it up for those that dont know.
There is an extension for Firefox(The best web browser of all time, imo) called Fxif that allows you to right click on a picture and click properties to show you that images exif data in your browser.
So no need to download a file to check data or asking the poster for exif data, you can check it yourself quick and simple Very helpfull in POTD threads when posters dont add exif data.
I dont know if there is anything like this for IE, maybe someone can post if they know of a way.
Hope this helps someone.