Today for some reason everything is down. Kind of like what happened last week with the entire internet being down with the DNS attacks. Today I think it has to do with the ZCASH launch. Bitcointalk was down earlier today also.
Yep, seems like a DNS issue - probelms on bitcoin talk, yobit, SD and others - there is obviously some effort buy criminals to buy or dump some coins without anybody else being able to report it or access the exchanges.
theymos explained the BitcoinTalk problem...
I think that it was/is some sort of upstream networking failure. I'm still seeing an above-normal level of packet loss, but it seems usable now at least. I'll keep an eye on it.
Lets hope the connectivity issues are solved now, things on bitcointalk seem much better today. [Fingers Crossed] =)