The email isn't what caused those to pop up on Facebook. It was the visit to Nordstrom's web site. Note the little facebook icon down at the bottom that allows you to "Like" the site. That icon is pulled from facebook so that it doesn't need you to log in. That means that facebook knows the URL of the page you are on (the address). When you did a search, facebook noted that YOU went to a page with Tori Burch. For example, the address I get when I search for "my house" in the address bar is
http://shop.nordstrom.com/sr?origin=keywordsearch&contextualcategoryid=2375500&keyword=my house
Facebook now knows that I searched for "my house" and will tailor the ad experience on their page and all of the embedded ads in other sites to it.
It's the same reason that hitting a page that has advertisements from Amazon on it will result in you seeing that same product in your suggested items on the Amazon web site. One wrong click and you're branded for life...until the next wrong click. I'll give you an example, I was searching for a Christmas present for a friend last year. It happens to be a female friend. I looked at some makeup gift bag thingies on Amazon before buying her a new pool cue. For the next 6 months, every time I looked at the Drudge report, the amazon ads there were suggesting I buy a purse or feminine hygiene products and such. I finally had to call and tell them that I was NOT the Troll and they stopped (not really, but had to take a shot at someone). It wasn't until I bought some men's cologne from them that they stopped with all the gurly ads.
And yes, google reads any gmail and facebook reads your profile. Also, lately facebook has been aiming to track where the mouse is on the screen so they can tell what you are reading (if you tend to follow your eyes with the mouse) or what you
almost clicked.