through initiatives such as OpenStreetMap, an expression of Volunteered Geographic Information. Dariusz Jemielniak and Aleksandra Przegalinska noted that Keen failed to distinguish between for-profit and non-profit aspects of the amateur participation (platform capitalism represented by companies such as Uber or Airbnb vs commons-based peer production represented by communities such as Wikipedia or Linux). They further note that Keen assumes that there is always a stark difference between quality of work produced by professionals and amateurs, which is not always the case. Keen's criticism is valid if the end result is low quality product that drives the higher quality product out of existence, but a number of products of the amateur community have been shown to be of comparable quality to professional products, and have been offered for a cheaper price, or completely free. Jarvis–Keen debate Jeff Jarvis, who had previously called the original essay in The Weekly Standard "snobs.com," was challenged to a debate over Web 2.0 issues. Jarvis held a discussion on his blog about whether he should debate Keen and then decided to accept the offer. See also Economic effects of Wikipedia Media criticism Reliability of Wikipedia Amusing Ourselves to Death An Army of Davids "Is Google Making Us Stupid?" The Global Trap The Wisdom of Crowds References 2007 non-fiction books Books about the Internet Books about Wikipedia Popular culture books Web 2.0 Doubleday (publisher) books