Of course the best way to improve your keyboarding skills is to practice them! Here are a bunch of sites you can use to practice your skills. Please ask your parents before downloading any programs onto your computer.

Typer Shark - Free Download
http://www.realarcade.com/game?gameid=typersharkdeluxe&src=gmpg&tps=google

Typing Games, Lessons, and Tests - Free
http://www.freetypinggame.net/

TuxTyping - Open Source software which means it's free to download
http://tuxtype.sourceforge.net/

Game Aquarium - Free keyboarding games
http://www.gamequarium.com/keyboarding.htm

Dance Mat Typing - Free from the UK, so it contains a British accent
http://www.bbc.co.uk/schools/typing/

Keyboarding Challenge - Click and drag the keys to the correct spot on the keyboard
http://www.abcya.com/keyboard.htm

Typing Lessons
http://www.kenston.k12.oh.us/kms/8th_grade_keyboarding/Lessons.htm

Typing Master Pro - Free Trial
http://www.typingmaster.com/individuals/pro/demo.asp

Typing Pal - Free Typing Test
http://www.typingpal.com/