To Knol or Knot To Knol... Who Knows?
What's Knol's future? Will non-marketers share what's in their heads or will Knol merely become competition for Wikipedia and article-submission sites (ex., squidoo.com and ezinearticles.com)? Another question...
Since you can earn income by placing AdSense ads on your knols, will authors choose more high-CPC-paying topics? There will certainly be an over-saturation on high-payout topics. Also, the entire "feeling" changes -- people contribute to Wikipedia out of a sense of mission, not commercialization. In short...
It's hard to predict whether Knol will succeed. Google has had failures and underperformers (ex., Google Answers, Base and Orkut). If they do not market this to "regular non-marketers," it's possible that Knol may become simply another article submission site for Web marketers, with a Web 2.0 twist. And those individuals may be quite happy with what they currently use.
On the other hand, this is Google. Creating a quality knol in your area of expertise (i.e., your Site Concept or a sub-theme of that) may turn out to be a strong way to improve your credibility in your niche, while also gaining one or more valuable inbound links.
The road to best results, assuming Google has the technology to truly figure out quality (a reasonable assumption) is the following...



