You have to establish that hxtp://www.diigo.com/?framerequest does not redirect to a spam page. malvertiser...
and it does to: htxp://fw.dnslink.com/?domainname=diigo.com&seedterm=San%20Diego&publicid=279F8BD6-C89B-40E3-988D-CD403BDEF41D
I get an invalid server name for a GET request...
polonus