Popular online reference

• Many teachers disallow it in footnotes
• Expanding on-line reference
• Reference site among the top 10 most visited websites
• Online reference source
• Its symbol is a globe composed of jigsaw puzzle pieces
• Reference site founded by Jimmy Wales
• Reference from the Hawaiian and Greek for "quick education"

Wikipedia Word definitions in Wikipedia
Wikipedia ( or ) is a free Internet encyclopedia that allows its users to edit almost any article accessible. Wikipedia is the largest and most popular general reference work on the Internet and is ranked among the ten most popular websites. Wikipedia is ...