Knol, Google’s platform for sharing articles about specific topics, appears to have been shutdown. It’s unclear if this is a temporary or permanent situation. We’ve reached out to Google for comment.
We’ve long been speculating as to when Google will shut down Knol. The knowledge-sharing site has essentially been reduced to a “Craigslist wannabe.” The original idea behind Knol was that people could collaboratively write definitive articles about any topic they like and get rewarded by earning a share of the AdSense revenues for each page they author. Unfortunately, no one seems to be reading anything on Knol and the product never really panned out. 
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