Google define Google Knol as the sharing of specific authoritative articles about a specific topics by a group of expert. The main concept of the Knol is to group all the vast amounts of information from everyone into the a site so that other can benefit from there.
The creator of the articles will be address as the owner or the author. The authour of an article will be also moderator for that article, public may suggest an edition to the author, then it depand the author whether want to accept the suggestion or not. Once the suggestion has been moderate and accepted, then it will only appear to the public.
It is very different from Wikipidia where every single visitor can edit the article. By using the moderator model, Google Knol can maintance the quality of the article publish on the site.
In addition, Google Knol also encourage the expert to contribute their knowledge online by using the model of profit sharing. The author of the article may include the ads from the Google Adsense program to get the revernus as the return of the contribution.
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