Google - Pages on www.facebook.com
Google - Pages that link to www.facebook.com
Bing - Pages on www.facebook.com
Alexa - Site Info for www.facebook.com
Compete - Site Profile for www.facebook.com
DomainTools - Whois for www.facebook.com
DomainCrawler - Domain Information for www.facebook.com
DMOZ - DMOZ search for www.facebook.com