Spiderlabs published an interesting article on this the other day. http://blog.spiderlabs.com/2013/12/look-what-i-found-moar-pony.html
The list has now appeared on pastebin and is being sold for 0.05 bitcoins. (last time I checked they made about $600 so far).
If you haven't already you may want to start looking at the strong authentication options for some of these services.
(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.