Ah Nupe, no problemo.

Must be some kind of local server DNS problem or something. Seems like you did everything you can beyond changing your default DNS server to 8.8.8 and see if that perks it up.
There's also the possibility that I'm somewhere where I get directed to a different part of their network, so your location could be down and the USA Mid-West could be fine.
Isn't there a site for checking if a site is up or down?
I like this one, it's got a cute name, but seriously works.
http://www.downforeveryoneorjustme.com/Then enter the location/URL of the site you are trying to connect to, cut and paste works, and it will tell if it's just you or everyone.
I got this... It's just you.
http://shutterstock.com is up.
Good Luck