I get the following message from my Chrome browser when trying to send PM's:
"Danger: Malware Ahead!
Google Chrome has blocked access to this page on www.specialstage.com.
Content from cm.netseer.com, a known malware distributor, has been inserted into this web page. Visiting this page now is very likely to infect your computer with malware.
Malware is malicious software that causes things like identity theft, financial loss, and permanent file deletion."
The malware was coming from NetSeer which is a third party network coming through DFP and is affecting a good chunk of the internet at the moment. Issue was resolved late yesterday afternoon and all networks (google, net shelter, etc) have blacklisted Netseer