From Search Engine Watch
Looking up domain ownership information is useful for search marketers investigating partners or competitors. It’s also a useful
tool for searchers wanting to check the validity of information on a web site by seeing who’s pulling the levers behind the
curtain.
Most “whois” services provide the name, address, registration dates, and domain server information for a site. Here’s what
they’ve added:
+Thumbnail image of home page provided by Thumbshots
+Title, meta description and keywords for home page
+Opend Directory and Yahoo listing
+IP address, location, server type and if its secure
+Traffic Ranking number on a scale from 1-10, with 1 being the most heavily trafficked
+Service which acts as an intermediary between you and someone who currently owns a domain name. The service makes an offer on your behalf, while you stay anonymous – Certified Offer Service