January 1st marks the start of a fresh year and with the New Year comes Public Domain Day. This is the day when the legal copyright for certain creative works expires, opening those works up for public use. Once a work enters the public domain it can legally be shared, performed, reused, repurposed or sampled without permission or cost. This year's Public Domain Day targets works from 1927. Duke University's Center for the Study of the Public Domain has a great FAQ which explains what the public domain is, how materials pass into it, how those materials can be used, and the general timelin...