Google Cache

To view Google's cache for the last time your site was indexed.
Open your web browser and go to www.google.com
Enter cache: followed by the website address you want to view the cache for.

Links: View the Google Cache for www.clikonce.co.nz
Keywords: Google, search engine optimization

Google Webmaster Tools

If you manage a site you can add it to a your Google Web Master Account (Free Google Account Required)
The Google Webmaster Tools allows you to check for top search queries, crawl errors, links to your site, keywords indexed and upload a sitemap.
Links: Google Webmaster Tools

Site Map

Adding a sitemap.xml file to your website can assist Search Engine Crawlers (like Google) with indexing your site
Links: Free Online Site Map Generator
Keywords: Site Map, search engine optimization