What skills stand out on Information Specialist resumes?

I regularly hear from employers in the information science field (particularly in libraries), and the number one thing they look for on applicants' resumes is work experience in a library setting. I recommend to students that if they have not worked in a library, they should find a way to get some practical work experience by working part-time in a library, doing an internship in a library, or at least asking a librarian if they can do a job shadowing for a few hours to get a feel for what the real workplace is like.