Etsy, Kickstarter, pages, music, more on this week’s top 20 emerging Facebook apps by MAU

Topping our list of emerging applications by monthly active users this week was Etsy, the e-commerce site for vintage and handmade items. There was no common theme among the rest of the apps on our list this week, but a few marketing campaign apps grew enough to be featured here.

We define emerging applications as those that ended with between 100,000 and 1 million MAU in the past week. This week’s top apps grew from between 20,000 and 220,000 MAU, based on AppData,