Click here to learn more about making a Google Site.
Passwords are available in the Journey room.
And when you are searching for a picture or song that won't violate copyrights...like you always should:
These databases are a great start to find copyright-free and share-alike audio, video, and pictures.
These sites will also help in your search.
Finally, within Google, the Tools button allows you to limit results to only show images that allow non-commercial reuse.