It was /frame.aspx?u=http%3a%2f%2fsearchportal.information.com%3fa_id%3d1637%26domainname%3disnnetwork.com%26adultfilter%3doff%26popunder%3doff&r=2&adi=100 on www.isnnetwork.com.
You might want to try starting at the Homepage of www.isnnetwork.com and looking around from there.