I came across Information.com today, which uses the default Domain Sponsor landing page. There are some domain names that resolve to http://searchportal.information.com/?domainname=XYZDomain, and many of them seem to use the default landing page. I am not exactly sure why domain names are forwarded there, but I know Oversee.net is the registrant of Information.com.
Judging by the Compete stats for Information.com, they are getting a ton of traffic, although the trend seems to be dropping for the past few months. In November, Compete reported that Information.com saw 20,667,014 unique visitors, which is down from 27,335,582 unique visitors in January of 2009.
Alexa ranks Information.com #667 out of millions of websites, and Compete ranks it #47. As a comparison, Google is the #1 ranked website for both. There are also 50,000+ Information.com pages indexed in Google, so you can get a glimpse of what domain names appear to be associated to Information.com.