Today I try to test it and added some content and published it. Its really easy to work with. You need to use simple editor tools from fonts to html. Yeah, its bit easy.
I also think to dig for contnet policy of knol. Lots of points are common with which we are aware. Some of the points are needs attention. So dear reader I am highlighting them here.
Content Policy - a knol by Knol Help
COMMERCIAL ACTIVITY: You may use Knol to create articles for your business or to promote your lawful products or services that are not otherwise prohibited by our Content Policy or Terms of Service, unless you are in Cuba, Iran, Burma (Myanmar), North Korea, Syria, or Sudan. There are some commercial uses we don’t allow. We don’t allow pages that have the primary purpose of redirecting visitors, acting as a bridge page, or driving traffic to another website. We also don’t allow Knol pages that have the primary purpose of profiting from displaying ads from any publisher network, such as pages created with little or no unique content that exist only to display ads.
SPAM, MALICIOUS CODES AND VIRUSES: We do not allow spamming or the transmission of malware and viruses or anything that might disrupt this service or harm our users. Spam includes, but is not limited to, sites that fail to meet Google's quality guidelines due to the use or promotion of such techniques as cloaking, keyword stuffing, search engine spamming, and doorway or bridge pages.