The major US writers' group, the Authors Guild, claims to represent all writers when it sues over library book-scanning and other fair uses; a new group, the Authors Alliance, has been launched by leading copyright expert Pam Samuelson to represent the authors who like fair use, users' rights, and who reject censorship and surveillance. — Read the rest
The Authors Alliance is a nonprofit that advocates for authors, libraries, readers and scholars (I'm on their advisory board); they've done a ton of great work, notably a tool for authors to claim their copyrights back from publishers, even when the original contract specified that the rights were signed away "in perpetuity."
Copyright markets are — and always have been — broken. People make art because they have to, and there's always a middle-man ready to take advantage of the oversupply of willing creators to grab our rights and pay us peanuts.
Under US copyright law, creators who have signed away their copyrights for the "full duration of copyright" can still get their rights back from publishers under something called the "Termination of Transfer," which is a hellishly complex and technical copyright provision that is almost never used, since it requires that creators wait decades and then successfully navigate all that complexity (even knowing how many years you have to wait is complicated!).
The "orphan works" problem has obsessed the Copyright Office — as well as authors, publishers, libraries, scholars — for years.