Here's an hour-long presentation on copyright law and fan art from San Diego ComicCon 2012, presented by a lawyer from DeviantArt who once worked as a copyright enforcer for Paramount. It's a pretty good overview, though -- predictably enough -- the presenter waits until quite late to talk about fair use and other public rights in copyright, generally downplaying them and omitting the de minimis exemption to copyright (the idea that it's not infringement if you take a small enough piece, for reasons that are separate from fair use) altogether.
During the Q&A, he also mischaracterizes SOPA and PIPA as having been concerned with "mass-scale" infringement (the laws allowed for censorship if there was a single link to a website that infringed), but makes up for it somewhat by plugging EFF, Public Knowledge and other public interest groups.
Josh Wattles, $makepictures is an expert on copyright law bringing perspective and experience to the issue from multiple creative industries. From art, film, music, and books, Josh has been directly involved in or advised on copyright issues for the biggest properties in the world. He is also a copyright professor teaching courses at at Loyola, Southwestern and the University of Southern California law schools in Los Angeles.
If you want to get a more thorough thorough look at the public's rights to copyright, read Mazzone's Copyfraud.