got it too.
Never registered at coinbase.
The only btc related stuff I registered to with that email address is Bitcointalk, Localbitcoins and Kraken (and havent used these in more than a year).
So it is probably one of these that had their memberslist leaked/hacked.
(Or.. one of these fuckers sold their data)
I am registered here (as you can see), but they don't have my first- and/or lastname, I think. I might have an account at localbitcoins, maybe with my name. I am not registered at Kraken.
Was there anything else? BTCJam maybe? Or any other exchange, Mt.Gox maybe? Their database is publicly available.