Knol was once supposed to be a cross between HubPages and wikipedia. user-written articles on a wide range of subjects.
Google has since discontinued it. But the I am keeping the information here as a historical document so others may see what once was.
Knol had the option of allowing contributions on individual pages by other members, but these changes were vetted by the original author.
A knol author could monetize their pages via Google Adsense, with 100% of the page views and revenue to the page owner. A person must first submit an application to Adsense for consideration for approval to the program. You would have needed some kind of track record already, whether that be published Knols or having your own blog or an account at HubPages.
My earnings in the space of about about two years totaled about... 2 cents. So you can see why Knol was discarded by Google.
What's in a name?
Google defines knol as meaning "a unit of knowledge" when the project was announced in December 2007
Knol opened to public beta in July 2008 and within six months the site had grown to 100,000 articles
Users from almost 200 countries visit Knol every day
How Knol Works
- Any contributor can create a new knol, even if the topic has been published before. So there might be multiple articles on the same subject.
- An author can be the sole contributor, or co-authors can be allowed, or even made open to the public.
- Ads can be shown, the revenue being attributed to the knol owner. What is allowed in terms of content is defined under the site ToS and also under the Adsense Programme Policies.
- In October 2008, Google enabled French, Italian and German versions.
- Contributors sign in via their existing Google account and are supposed to state their real names.
- Readers with Google accounts can comment and rate articles.
- All outgoing links on a knol are "nofollow", to negate the worth of spammers using the service in terms of SEO benefits.