Facebook is awesome! You can download pictures, chat with freinds, and even make new freinds.
With a blog you can read, write or edit a shared online journal with freinds, classmates etc..
A wiki is an internet tool that allows you to create and edit web pages.
An e-mail is something you can access important information from, that someone has sent to you because they could,nt personally get in contact with. It can also be used for entertainment as well.
A podcast is a variety of digital media files that can be downloaded thru the web that is very easy to do.