How do I get Facebook to display a thumbnail picture when I submit a link on my wall?
This is a common question amongst bloggers and webmasters. The truth of the matter is that Facebook displays a little preview picture if it finds one within the body area of your article (Digg.com does this, too). You might notice that it will sometimes display multiple images it found on the page, that you can cycle through with a left & right arrow. If you are a blogger or are running a website, make sure all of your pages has a postage stamp-sized image somewhere at the top of your article if you’d like it to appear when people share your stuff on Facebook!