My friend actually made this site/software.
Basically you download this little program and install it. After that, it's built into your windows menu. So after you take a screen shot, you can automatically upload the screenshot without visiting any website.
You can also select one or more pictures/files at a time and upload them all at once. Just highlight the file(s) and right click and choose "upload to fileshack".
Here's a video I made for him: Adult Content Disclaimer
It just shows the method of uploading a picture.
The website is FileShack.us
if you're interested.