Google Sites - It is easier than you think!!
If you would like information about presenting at your school or district, please email me [email protected]  
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Here are the resources from my Google Site Presentation
New Google Site Slide Presentation

Other Resources:
Steegle - Google Sites Comparison (Classic and New) along with how-to videos for working with Google Sites
Eric Curts The New Google Sites (Youtube Video)




Below are the Resources that I used when doing a session on the Old Google Sites. 
Google Site Slide Presentation
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Link to Simple Example of a classroom Site  (easy to maintain, change most of the content on the Docs Side)

Link to an more complete tutorial website  Many Howtos using the site to provide examples. Many videos are included

Youtube Search for Google Sites (tons of resources) Watch a few of these and you will be an expert!