Google Webmaster Resources

In toying around with Google Sitemaps, I came across some great reminders of advanced search features Google offers for webmasters, or for anyone looking for more info about a site. To use these, see the examples, or just go to google and type the query, such as

site: Indexed pages in your site
link: Pages that link to your site
cache: The current cache of your site
info: Information we have about your site
related: Pages that are similar to your site