How do I change the preview image used when I type my URL?

[Hollister]

When I insert the URL for my site in FB or in an email message, I get a preview image that shows up. How can I set that image to be my logo which is the image at the top of all of my website pages?

[Adam7]

Facebook has certain requirements for an image to be used, and I would guess that your logo is probably not quite large enough to be used. You might be able to get around that by adding an image to a different page of your site and then adding an opengraph meta tag to Settings > SEO > Header Code, though.

Can you upload a larger version of your logo to a hidden page of your site, then let me know the address of the page?