1. Open up your Webpage
2. Go to "more actions"
3. Click on "share this site"
4. A window will open up showing who can access your site , and you can add contacts as well. It will give you the options "can view", "is owner", or "can edit". Click on whatever option applies. Pretty straight forward.
Single-click page creationCreating a new page for your Google Site just takes the click of a button.
No HTML requiredCreating a Google Site is as easy as editing a document, which means there's no markup language for you to learn -- just get started.
Make it your ownCustomization options let you give your Google Site your own look and feel
Get started with templatesThere is a growing list of page types such as web page, announcements, file cabinet, dashboard and list
Upload files and attachmentsUse the file cabinet to upload files up to 10MB in size. Each Google Apps account receives at least 10GB of storage in Google Sites. Google Apps Premier and Education editions get an additional 500MB for each user account.
Embed rich contentGoogle Sites is integrated with other Google products, so you can insert videos, docs, spreadsheets, presentations, photo slide shows, and calendars directly onto your Google Sites pages.
Work together and shareThe permission settings let you designate owners, viewers and collaborators (meaning they can edit pages) for your site. And you can make your Google Sites available to just a few people, your entire organization, or the world.