Update: You can see a page from the alleged memo requesting ISPs to block facebook by clicking here. I can't say whether this is authentic or not. It's been circulating around the web.
Update: Haven't tried this myself, but below are instructions floating around to get around the problem:
1. Click: Start->Control Panel->Network and Internet Connections->Network Connections.
2. Click Properties of LAN icons.
3. Choose "Internet Protocol (TCP/IP)->Properties.
4. Use the following DNS server addresses: type: 184.108.40.206 in "Preferred DNS server" and “Alternate DNS server”
5. Click Save or OK
Additionally, I'm hearing complaints that some people can not access Twitter. Anyone else in VN having a problem?