Congratulations on creating your google site! Now you are ready to mask it if you so choose to, to a domain name you have purchased.
For example, you would like your sites.google.com/site/mygooglesite to appear when people visit www.mysite.com
You can find out how to do this through the google sites help centre documentation however these instructions are not as easy to follow as steegle.com 's comprehensive guide.
If you need help I can just do it for you! I can provide you with a service for a small fee, you add me as an owner to your site, I log into your site / apps and map it for you, when you are happy you then remove me as an owner.
It is always easier to do it correctly the first time than try and unravel errors in mapping the site.
I am a google sites top contributor so you can rest assured you are in safe hands. Contact me email@example.com
Good luck people!