I previously wrote about Knetwit, the knowledge sharing site where you can upload your class notes in exchange for cash or merchandise, and view notes from others who have taken your classes. (Click here to read the original post.) At the time, they had a limited selection of merchandise from which to choose. I checked back today, and discovered that Knetwit has vastly expanded the variety of items in the Knetwit store. The difference is huge! They have gone from having one type of TV or MP3 player, each requiring hundreds of thousands of points, to having dozens of choices, many of which could be earned fairly quickly.
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