I believe that I have concluded that any site ending in .com is down while sites that do not are fine such as The forums and lolbot.I cannot use Google to test this theory so may I please have some links using .us, .net, .gov, etc.
Maybe your ISP blocked all .com websites in an effort to stop you from using their service.
Why would they do this
www.Minecraft.net
Other OT: Try running the virus scan or restarting the computer. It could be a Trojan virus (Which would really suck).
I don't think it is a virus because I just realized this is affecting my phone too. Nevertheless I'm running a full system scan.