What’s “fair use” of copyrighted material? This thorny question comes up a lot in my life. I was trying to decide if it’s wise for ScienceBasedMedicine.org to use a screenshot of a quack’s website, and I came across this well-written summary. In a nutshell? Probably fine. It’s all murky as hell, but “reproduction for purposes such as criticism, comment, news reporting, teaching, scholarship or research” is well within the bounds of fair use. Probably. Good to know.