New management roles at Etsy, the Brooklyn-based online arts-and-crafts marketplace: Co-founder Rob Kalin ( SA 100 #50 ) is dropping his CEO title and becoming "chief creative officer," which he describes as "a nice loose moniker that will allow me to focus on what I'm best at: product work and long-term, big-picture thinking." His replacement as CEO: Maria Thomas, who's been Etsy's COO since May , and used to work for NPR's digital wing. Etsy has also hired Chad Dickerson away from Yahoo (YHOO); he'll join the company as CTO in September. Kalin (right) will also plan and develop Etsy.org, "a non-profit organization that will focus on the educational side of how to make a living making things." More from Kalin and Thomas at Etsy's site ; more from Dickerson on his blog ; and more from investor Fred Wilson on his blog . See Also: Etsy Hires New Drummer, COO Etsy Selling To Martha Stewart? Nope Etsy Gets $27 Million; Accel Investing ...