http://www.google.com/help/operators.html
link:
The query [link:”> will list webpages that have links to the specified webpage. For instance, [link:www.google.com”> will list webpages that have links pointing to the Google homepage. Note there can be no space between the “link:” and the web page url.
Quick List
• cache:
• link:
• related:
• info:
• stocks:
• site:
• allintitle:
• intitle:
• allinurl:
• inurl: