You may not know that the very keyboard you are using is actually not the only, nor the most efficient layout available. In fact, there are several different keyboard layouts for the English language, and countless other layouts for other languages. The QWERTY keyboard layout that is used today was not designed with efficiency in mind. In fact, the QWERTY layout was designed to slow down typists so the keys of the mechanical typewriter wouldn't stick. Now, with the invention of the computerized keyboard, other layouts can be used without mechanical problems. The Dvorak keyboard is one of the most popular alternate layouts for keyboards. It was invented during WWII when the allies needed a more efficient keyboard. So Dvorak took the most common letters and put them under the most accessible and strongest fingering positions. The result was a more ergonomic, if not faster keyboard. Also, the Dvorak keyboard is said to be more efficient for left handed people.
There are also special keyboards for gaming and special programs. For example, one keyboard is built so that all of the keys can be moved to any place on the keyboard, and even removed. Many other layouts are available, so if you have one to add, feel free.