Need to translate something, use this site.
The name babelfish comes from the classic novel, Hitchhiker's Guide To the Universe. In the book, travelers can put a yellow fish, called a babelfish, in their ear. The babelfish would then translate any language they hear. Don't you wish we really had babelfish.

English-English Dictionary with sound.
I use this sight all the time. It also has sound so that you can hear the new words you are learning.

How do US students use Technology.
This is a video about what students learned in a Technology class at Kansas State University.

Dr. Wesh, professor of this class, won the US Professor of Year award.