Anyone Else Having Trouble w/Facebook Share Links?

I run a content-based website ( http://www.gradspot.com ) and have included facebook share icons/links at the bottom of each article. However, after clicking on the share icon/link, while I am forwarded to Facebook, it doesn't usually pick up anything from the article (i.e., there's no title, description or thumbnail). Sometimes it doesn't even pick up the link. All that being said, we've even included the meta tags Facebook suggests.

Anyone had this problem before and been able to fix it?

Thanks for any help you can give!