HTTP doesn't work, HTTPS does MacBook Pro with Mavericks after resume, HTTP doesn't work but HTTPS does. No firewall, no proxy. HTTP does work in virtualized machines (everyone, one Ubuntu, one Windows 7 and a Windows Server 2008)

You just try in terminal telnet whateverdomain.whatevertopleveldomain 80 ...just nothing.

I'm lost
Try typing "curl -v http://domain.com" and see if you can fetch the page that way. Try a few different sites, to rule out one specific site being down.

Also, try confirming there's no proxy set by using:
networksetup -getwebproxy Wi-Fi  (if you're connected via wifi)