This is a quick sample creation, but you can browse others at http://www.myebook.com/Password: letmesee You can add text, images, audio and video! Similiar to Glogster, but in book form, just flip through the pages.
Blogger is the site you're currently on. What is a blog? Check out this YouTube video http://tinyurl.com/36wjyo. Post all types of information and interact with others through "comment." Make it public or private. Blogger is a Google application, but there are many others out there as well.
Want to explore on your own? Find tools for management, communication, collaboration, sharing and organizing here, many of which I have listed in this blog. tiny.cc/RwFW1
Use del.icio.us to help you organize your favorite sites as well as share them with others. Plus you can find popular sites similiar to those you've found. http://delicious.com/