Create and share web site information collaboratively

Google Site will provide you with some standard templates available if you do not want to create the page of your own. You can even upload files and attachments. Using the file cabinet you can 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. You can embed rich content like videos, docs, spreadsheets, presentations, photo slide shows, and calendars directly onto your Google Sites pages.

Now the main distinctive feature which I have seen in this apps is “Work together and share”

Using permission settings you can 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. So you have the entire control of viewership.