Possible Duplicate:
How does Facebook Sharer select Images?
I'm curious as to why Facebook doesn't always pick up an image for a link that is posted when there are plenty of images on the page? I have several images but I cannot seem to get it to register one for it's link.
http://www.rubytuesdaycreative.co.uk
Is there anything I can do? Is it possible to create a particular image in my site that is hidden but Facebook will pick up on?