One image per post.
1. Press [print screen]
2. Open any image editor such as GIMP or Photoshop.
3. Save the image to your desired location.
Mac OS X
1. Hold [apple] + [shift] + 
2. Saves the image to your desktop.
1. Navigate to Applications > Accessories > Take Screenshot
2. Save the image to your desired location.
1. Visit ImageShack.
2. Browse for the image.
3. Upload the image.
4. Copy the URL of the image.
5. Create a post with the following code: