“Scholars have studied the citation patterns for law journal articles from many angles. This year, I’m jumping into the fray, using Law Library Journal‘s “Practicing Reference” column as a forum to share findings from several modest investigations.  I got started when a professor who was teaching seminars for law journal students asked if I could give him lists of often-cited student pieces in environmental law and in IP and tech law (the topics of the two journals). Here I discuss the process for that project and its results. I also take a look at articles. I list the most-cited articles from 2012 and discuss some challenges of studying what each cites—a question I wanted to answer but wasn’t able to. I compare the results from HeinOnline’s ScholarCheck, Westlaw’s KeyCite, Lexis’s Shepard’s, and Web of Science. There’s overlap, but not as much as you might think.”