A knol is a unit of knowledge, and is also Google’s latest invention. Similar to the popular Wikipedia, Knol is a hybrid of an encyclopedia, article submission site, and link aggregator. It allows users to take credit for their work while submitting their view and opinion of a subject. These Knols can also be edited by other users at the writer’s approval. It allows more than one article to be submitted on the same subject, expanding ideas and views. The real kicker comes in when Google adds in their AdSense revenue split advertising system to the formula. People who write Knols’ can also register for an AdSense account which allows them to profit off of the ads on their Knols. The incentives are high for users who want to create multiple Knols (usually on a similar subject) just so that ads can be placed and they have a higher chance of people clicking them.