[Discover] Official Google Blog: Knol is open to everyone http://googleblog.blogspot.com/2008/07/knol-is-open-to-everyone.html (google knol wikipedia knowledge)
 [Discover] Knol: a unit of knowledge http://knol.google.com/k# (google encyclopedia jl collaboration)
 [Discover] Google's Knol Launches: Like Wikipedia, With Moderation http://searchengineland.com/080723-133642.php (knol wikipedia google crowdsourcing)
 [Discover] Knol - Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/Knol (google wikipedia knol encyclopedia)
 [Discover] Google Throws Open Rival for Wikipedia — Anon Authors Discouraged http://www.wired.com/software/coolapps/news/2008/07/google_knol (wikipedia google knol)
 [Discover] Introduction to Knol - a knol by Knol Help http://knol.google.com/k/knol/knol/Help# (writing tips knol)
 [Discover] TechCrunch Japanese アーカイブ » Knol―GoogleがWikipedia+Squidoo的なユーザー生成型 http://jp.techcrunch.com/archives/google-preparing-to-launch-game-changing-wikipedia-meets-squidoo-p ... (google translatedinjapanese wikipedia database)
 [Discover] Knol - JDKA07_lynxeyed http://d.hatena.ne.jp/lynxeyed/20071225/1198597886 (knol)
 [Discover] Google版Wikipedia？　知識共有ツール「knol」をテスト - ITmedia News http://www.itmedia.co.jp/news/articles/0712/14/news109.html (wikipedia google knol news)
 [Discover] Google、“実名版Wikipedia”を実験中であることを明らかに http://internet.watch.impress.co.jp/cda/news/2007/12/17/17897.html (google knol)
 [Discover] Wikipedia and Wikia are Dead. Google Just Killed Them http://www.micropersuasion.com/2007/12/wikipedia-and-w.html (wikipedia google wikia wiki)