List of google commands for webmasters!

Indexed pages in your site:
site:www.mydomain.com/

Pages that refer to your site's URL:
allinurl:www.mydomain.com/

Pages that link to your site:
link:www.mydomain.com/

The current cache of your site:
cache:www.mydomain.com/

Information we have about your site:
info:www.mydomain.com/

Pages that are similar to your site:
related:www.mydomain.com/

Hope that helps